You must meet Astound Broadband powered by RCN’s requirements in choosing a modem for their internet service, because they do not offer an actual Astound Broadband powered by RCN approved modems list. If you meet the following qualifications, a modem should work on their network.
- At least 16 Downstream Channels
- DOCSIS 3.0 or DOCSIS 3.1 certified
- Cannot be an eMTA (cable modem and telephone adapter); phone service requires an Astound Broadband provided eMTA (you can still use your own modem with the eMTA)
- Customers with fiber-to-the-home or Ethernet-delivered service must use an Astound Broadband internet device
- Currently not compatible with the Astound Broadband network: Motorola MB8600 DOCSIS 3.1 modem
The modems listed on this page carry the minimum modem requirements for Astound Broadband powered by RCN internet service.
Read the Cable Modem Buying Guide to help you choose a modem. Do not forget to purchase your modem accessories.
Internet providers have begun removing some DOCSIS 3.0 modems from their networks. To maximize the years of use from a modem, it is strongly recommended to purchase a DOCSIS 3.1 device (the latest standard).
Note: ApprovedModemList.com may receive a small commission from affiliate links, which helps to keep this website online.
Jump to the full Astound Broadband powered by RCN approved modem list
Last Updated: December 1, 2024
Recommended Astound Broadband Powered by RCN Approved Modems for December 2024
Best Modem Value
| Model # | NETGEAR CM500 |
| DOCSIS | 3.0 |
| Color | Black |
| WiFi Router | No |
| VoIP Telephone Adapter | No |
Best DOCSIS 3.1 Modem
| Model # | ARRIS S33 |
| DOCSIS | 3.1 |
| Color | White |
| WiFi Router | No |
| VoIP Telephone Adapter | No |
Best WiFi Modem
| Model # | NETGEAR CAX80 |
| DOCSIS | 3.1 |
| Color | Black |
| WiFi Router | Yes (WiFi 6) |
| VoIP Telephone Adapter | No |
Full Astound Broadband Powered by RCN Approved Modem List
The Modems Listed Below Are All DOCSIS 3.0 Modems Unless Indicated as a DOCSIS 3.1 Modem
♦ Indicates an Intel Puma Chipset Defect – Do Not Buy
Note: ✅ means Yes, ❌ means No
| Brand | Model # | Channels | VoIP | WiFi |
|---|---|---|---|---|
| ARRIS | G34 ♦ | DOCSIS 3.1 | ❌ | ✅ |
| ARRIS | G36 ♦ | DOCSIS 3.1 | ❌ | ✅ |
| ARRIS | S33 | DOCSIS 3.1 | ❌ | ❌ |
| ARRIS | CM8200A | DOCSIS 3.1 | ❌ | ❌ |
| ARRIS | SB6183 | 16×4 | ❌ | ❌ |
| ARRIS | SB6190 ♦ | 32×8 | ❌ | ❌ |
| ARRIS | SB8200 | DOCSIS 3.1 | ❌ | ❌ |
| ARRIS | SBG10 ♦ | 16×4 | ❌ | ✅ |
| ARRIS | SBG6900-AC | 16×4 | ❌ | ✅ |
| ARRIS | SBG6950AC2 ♦ | 16×4 | ❌ | ✅ |
| ARRIS | SBG7400AC2 ♦ | 24×8 | ❌ | ✅ |
| ARRIS | SBG7580-AC ♦ | 32×8 | ❌ | ✅ |
| ARRIS | SBG7600AC2 ♦ | 32×8 | ❌ | ✅ |
| ARRIS | SBG8300 ♦ | DOCSIS 3.1 | ❌ | ✅ |
| ASUS | CM-16 | 16×4 | ❌ | ❌ |
| ASUS | CM-32 ♦ | 32×8 | ❌ | ✅ |
| Linksys | CG7500 ♦ | 24×8 | ❌ | ✅ |
| Linksys | CM3016 ♦ | 16×4 | ❌ | ❌ |
| Linksys | CM3024 ♦ | 24×8 | ❌ | ❌ |
| Motorola | MB7420 | 16×4 | ❌ | ❌ |
| Motorola | MB7621 | 24×8 | ❌ | ❌ |
| Motorola | MB8611 | DOCSIS 3.1 | ❌ | ❌ |
| Motorola | MG7540 | 16×4 | ❌ | ✅ |
| Motorola | MG7550 | 16×4 | ❌ | ✅ |
| Motorola | MG7700 | 24×8 | ❌ | ✅ |
| Motorola | MG8702 | DOCSIS 3.1 | ❌ | ✅ |
| Motorola | MG8725 | DOCSIS 3.1 | ❌ | ✅ |
| NETGEAR | C6230 | 16×4 | ❌ | ✅ |
| NETGEAR | C6250 | 16×4 | ❌ | ✅ |
| NETGEAR | C6300 ♦ | 16×4 | ❌ | ✅ |
| NETGEAR | C6300v2 ♦ | 16×4 | ❌ | ✅ |
| NETGEAR | C6900 | 24×8 | ❌ | ✅ |
| NETGEAR | C7000 | 24×8 | ❌ | ✅ |
| NETGEAR | C7000v2 | 24×8 | ❌ | ✅ |
| NETGEAR | C7500 | 24×8 | ❌ | ✅ |
| NETGEAR | C7800 | DOCSIS 3.1 | ❌ | ✅ |
| NETGEAR | CM500 | 16×4 | ❌ | ❌ |
| NETGEAR | CM600 | 24×8 | ❌ | ❌ |
| NETGEAR | CM700 ♦ | 32×8 | ❌ | ❌ |
| NETGEAR | CM1000 | DOCSIS 3.1 | ❌ | ❌ |
| NETGEAR | CM1000v2 | DOCSIS 3.1 | ❌ | ❌ |
| NETGEAR | CM1100 | DOCSIS 3.1 | ❌ | ❌ |
| NETGEAR | CM1200 | DOCSIS 3.1 | ❌ | ❌ |
| NETGEAR | CM2000 | DOCSIS 3.1 | ❌ | ❌ |
| NETGEAR | CAX30S | DOCSIS 3.1 | ❌ | ✅ |
| NETGEAR | CAX80 | DOCSIS 3.1 | ❌ | ✅ |
| NETGEAR | CBR40 ♦ | 32×8 | ❌ | ✅ |
| NETGEAR | CBR750 ♦ | DOCSIS 3.1 | ❌ | ✅ |
| SMC | D3CM1604 | 16×4 | ❌ | ❌ |
| TP-Link | ARCHER CR500 | 16×4 | ❌ | ✅ |
| TP-Link | ARCHER CR700 | 16×4 | ❌ | ✅ |
| TP-Link | CR1900 | 24×8 | ❌ | ✅ |
| TP-Link | TC-7620 | 16×4 | ❌ | ❌ |
| TP-Link | TC7650 | 24×8 | ❌ | ❌ |
| Zoom | 5370 | 16×4 | ❌ | ❌ |
Channels: first # refers to downstream channels, second # refers to upstream channels (e.g. 16×4, means 16 downstream channels and 4 upstream channels)
DOCSIS 3.1 offers the fastest speeds
VoIP: indicates if the modem has telephone capability
WiFi: indicates if the modem has WiFi capability
Astound Broadband Powered by RCN Approved Modems Removed in January 2022
ARRIS SB6141
ARRIS SB6180
ARRIS SB6182
ARRIS SBG6400
ARRIS SBG6580
ARRIS SBG6700-AC
ARRIS SBG6782-AC
Cisco/Linksys DPC3008
Cisco DPC3010
Cisco DPC3825
D-Link DCM-301
Linksys CM3008
Motorola MB7220
Motorola MG7310
Motorola MG7315
NETGEAR C3000-100NAS
NETGEAR C3000v2
NETGEAR C3700-100NAS
NETGEAR C3700v2
NETGEAR C6220
NETGEAR C6300BD
NETGEAR CG3000D
NETGEAR CG3000Dv2 N450
NETGEAR CG4500BD
NETGEAR CM400
TP-Link TC-7610
TP-Link TC-W7960
Ubee DDW365
Ubee DDW366
Zoom 5341J
Zoom 5345
Zoom 5350
Zoom 5352
Zoom 5354
Zoom 5360
Zoom 5363
Zyxel CDA-30360
Astound Broadband Powered by RCN Approved Modems Added in April 2023
Motorola MB8611
Astound Broadband Powered by RCN Company Information
Astound Broadband powered by RCN Phone Support: 1-800-427-8686
Astound Broadband powered by RCN Contact
Astound Broadband powered by RCN Support
Astound Broadband powered by RCN Service Centers
Astound Broadband powered by RCN Facebook
Astound Broadband powered by RCN Twitter
Astound Broadband powered by RCN YouTube
Astound Broadband powered by RCN serves the following areas: Boston, Chicago, DC Metro, Lehigh Valley, Luzerne County, New York, and Philadelphia.
Approved Modems Helpful Resources
Best Wireless Routers for 2024
MoCA discussion appears in the comments section below.
Hello, is this modem compatible with the RCN?
“NETGEAR C6300BD AC1900 MODEM GATEWAY DOCSIS 3.0”
Yes, the NETGEAR C6300BD is compatible with RCN, but it is advised that you do not purchase this modem gateway. This network device contains an Intel Puma chipset, which may give you problems. You can read more about Intel Puma Chipset Defects here. You should pick a different modem.
So VoIP is X for all… what can I do if I need their phone service with BYOM?
Thank you for the list.
Hi David,
As stated at the top of the page (bullet list), RCN requires you to use their eMTA (telephone adapter). You can still use your own modem with RCN’s eMTA. Thanks for the question.
I need only modem cable or with WiFi router too and model ARRIS SBG10 works?
Thanks Felipe for the question.
Yes, the ARRIS SBG10 will work with RCN’s internet service. It is both a modem and WiFi router. However, you should avoid purchasing the ARRIS SBG10 as it contains an Intel Puma chipset. You can read more about the problems with this chipset on the Intel Puma 6 Modem List Chipset Defects page.
You should really pick a different device for a hassle free experience. The NETGEAR C7000 is highly recommended.
Is the Arris SVG2482AC compatible
Yes, the ARRIS SVG2482AC would be compatible with RCN. However, Shawn, you should avoid that device as it contains a Puma chipset, which will likely give you problems.
Click the link to learn more about bad Intel Puma chipset modems.
I thought this only worked with Xfinity? I’ve had this router with them for about a year and am switching to RCN, you’re sure this will work with RCN?
Mike, if you need phone service from RCN, you will need to use a RCN eMTA. If you need the ARRIS SVG2482AC for modem and router use only, you might be able to use it for RCN (the device has 24 downstream channels). RCN states that the only device that does not currently work with their network is the Motorola MB8600.
To make sure, you should contact RCN and give them your local address. Let us know what they say, Mike.
Does RCN support netgear CM1150V-100NAS.
It has phone support, so I assume you would also need an eMTA adapter.
Does that mean you have to pay for VOIP?
Yes, RCN should support the NETGEAR CM1150V-100NAS since it has at least 8 downstream channels. But since you will need to pay for a separate RCN eMTA device for phone service (verify the cost of the eMTA with RCN for your area), the CM1150V is an expensive device just to use as a modem with 4 ethernet ports. Unless you plan on using the device with another ISP in the future, you would be better off choosing a cheaper modem to use for RCN service.
Yes, you will have to use RCN’s eMTA device for phone service. There will be a cost for “renting” the eMTA plus the cost for the phone service itself (based on what package you order – phone, TV, internet).
The RCN eMTA also contains a modem, but you will be stuck with whatever performance they give you instead of choosing your own device.
is the NETGEAR Nighthawk X4S DOCSIS 3.1 Ultra-High Speed Wifi Cable Modem Router Combo compatable?
Unfortunately, no, Chris. The NETGEAR C7800 Nighthawk X4S DOCSIS 3.1 Ultra-High Speed WiFi Cable Modem Router Combo is one of only two modems that RCN has specifically stated is NOT compatible with their network (please see the forth bullet point at the top of the page).
RCN has been trying for months to get the C7800 certified. Sorry, Chris, you will have to choose another device.
Is the Netgear CM700 compatible? It seems to work fine most of the time, but I’m having issues getting downstream channels periodically.
Yes, James, the NETGEAR CM700 is compatible, but you are mostly likely encountering the Intel Puma chipset defect. You can read about the issues in the link provided.
In short, you should avoid the CM700. You may want to purchase a different modem.
Is the Motorola N450 N Router compatible? If not, why not? Thanks!
Yes, the Motorola MG7315 8×4 Cable Modem Plus N450 Router is compatible and appears on the RCN approved modem list above. Clicking the link will take you to the Amazon product page.
Thanks for the question, AG.
I have a MOTOROLA MT7711 that I bought for Comcast – disregarding the VoIP feature, can it be used for RCN? Thanks in advance!
Yes, Andy, the Motorola MT7711 will work with RCN if you disregard the VoIP functionality. Thanks for the question.
Hello! Will the Netgear AC1200 high speed modem/ router work with RCN?
My mistake, it is AC1200 Wifi cable modem router.
AC1200 just refers to the speed of the WiFi, which NETGEAR has several devices that operate at Internet connection combined speeds of 1200 Mbps. You may be referring to the NETGEAR C6220, which is a modem and router combo unit. And yes, Daniel, it is approved for use on RCN’s network.
Thanks for asking. Did that answer your question?
Yes! Thank you 😁
You are welcome!
A caveat to that answer… I have one and on moving service from one address 2 block away in Chicago the modem stopped working, despite both RCN service. Apparently the Netgear model I purchased on Amazon, a brand new in the box, was originally a Comcast ordered version. It locked out at the new address and even after factory reset continuously went to “Ready to start your xfinity service” screen on every website after modem / WiFi router initialization. $120 down drain as RCN said that type of lockout of other providers is common with xfinity and other major provider s
What is the difference between the Netgear CM1000-100NAS and the CM1000-1AZNAS? Are they both approved modems?
Yes, they are both approved. The NETGEAR CM1000-100NAS means it is a regular NETGEAR retail box. The CM1000-1AZNAS means it is an Amazon packaged box (most likely frustration-free or easy open). The devices in the boxes are the same.
Thanks for the question, Pedro.
Is the CM1000 still compatible? the list shows red X’s
Yes, James, the NETGEAR CM1000 is still compatible with RCN. The red X’s refer to VoIP and WiFi capabilities (please refer to the the purple header at the top of the table).
Is the router Actiontec GT784WNV compatible with RCN?
Hello SG,
No, it is not. The Actiontec GT784WNV is a DSL device. RCN requires a cable modem device – a DOCSIS 3.0 or DOCSIS 3.1 modem to be precise.
Just spoke with RCN. The CM1000 Modem can be used with the 1000Mbps plan.
Hi ModemGurus, the Arris SURFboard SB8200 is not yet on your list. It doesn’t have the Intel Puma chip, which is good, but would this modem be compatible with RCN? Thank you!
Hi Jen,
Yes, the ARRIS SURFboard SB8200 is compatible with the RCN network. The SB8200 is on the RCN approved modem list and as you said, it does NOT contain the Intel Puma chipset.
Thanks for the question.
Just FYI, I just had a RCN technician that they have a lot of problems with the SB8200 and told me to get a different modem. Mine also wasn’t working.
But you are showing the ARRIS SB8200 as a “no” on your list above. Along w/ the proceeding 12/27/19 note from “Michael in New York”, perhaps you want to amend your 7/1/19 comment where you indicate this modem is compatible and on the RCN approved model list.
Thank you for all your great work on this website.
Hello, I am deciding between this two, which one would you recommend for RCN compatibility? Netgear N900 Dual Band Gigabit WIFI Router (CG4500BD) or NETGEAR – N450 WiFi Cable Modem Router (CG3000D v2)?
Thank you!
Honestly, neither one as they are both older modems/routers. If you can afford it, The NETGEAR C7000 is highly recommended.
A cheaper alternative is the TP-Link Archer CR500.
Hello, Thank you for this wonderful resource. I notice that you highly recommend the NETGEAR C7000. However, the description on the Amazon link says that it is
“Built for fast speed: best for cable provider plans up to 400 mbps speed.Modem technology: Engineered with 24×8 channel bonding and DOCSIS 3.0.”
I do have the 256 plan (Washington DC) with RCN but this Modem doesn’t seem to give me room to grow. I’d prefer to buy Docsis 3.1 with at least a gig bandwidth modem/wifi combo. Do you have a recommended device?
Hello LLEE,
There are two options for you for DOCSIS 3.1 and WiFi included: the NETGEAR C7800 or the NETGEAR CAX80. The CAX80 includes WiFi 6, the latest and fastest standard. If you need help with any thing else, reply back.
Hello Modem Gurus,
Thank you for your prompt reply. This is very helpful and actually my service level is up to 330Mpbs. These wifi modems are pricey but I have the feeling that if I spend $200 on the Netgear C7000 I’ll end up needing a replacement sooner than later. Although, I’m not sure that with my current modem (its quite old) I’m actually experiencing the full benefits of the 330Mpbs plan. I think I’ll try one of the Docsis 3.1 units you recommend to see if I get full extent of 330Mpbs and still have space to grow when necessary. Thank You!
Your welcome, LLEE. Yes, DOCSIS 3.1 modems are more expensive than DOCSIS 3.0 devices. Adding WiFi on top of that adds an additional cost. But as you say, if you feel you will be purchasing another device so soon after getting the NETGEAR C7000, it is probably best to future-proof yourself. The choice is yours, obviously. Any DOCSIS 3.1 device will more than allow you to reach the full benefit of your 330 Mbps speed (with plenty of room to grow).
Will the NETGEAR CM1200 be supported/approved?
Pedro, thanks for the question and for pointing out a missing modem on this page. The NETGEAR CM1200 has been added to the RCN approved modems list. Currently, only the Motorola MB8600 and the NETGEAR C7800 are not certified by RCN as DOCSIS 3.1 modems.
Sorry, I understand now, the “WiFi” designation indicates that the modem is a modem/router combo with built-in wifi functionality. Sorry for the confusion and unnecessary comment. Please delete both of my comments. But you may still want to consider the 12/27/19 comment from “Michael in New York” relative to RCN’s support of the ARRIS SB8200. Thank you.
ATC, glad you figured out the “WiFi” designation. Until RCN actually states the ARRIS SB8200 is not compatible with their network, it will continue to be listed as approved. RCN has stated that Motorola MB8600 and the NETGEAR C7800 are not compatible with their network (but only these two DOCSIS 3.1 modems). For people that read the comments, you may want to avoid the SB8200 or all DOCSIS 3.1 modems until RCN gets a handle on these more advanced modems.
“Michael in New York” may be experiencing a local problem with the SB8200. Other cities may not experience issues.
Thanks for the input, ATC.
Hi Guru,
The man who will be doing the installation told me I need a docsis 3.1 modem/router combo.
You say rcn can’t handle docsis 3.1? Does that mean that Arris SBG8300 is a no go? All the modems in the list are 3.0 or they don’t have wifi.
First of all, avoid the ARRIS SBG8300 as it contains an Intel Puma chipset. If you need a DOCSIS 3.1 modem, it is best to combine that with a separate router, since as you mentioned, all of the modems on the list don’t have a built-in router.
RCN should be able to handle DOCSIS 3.1 since they only exclude two DOCSIS 3.1 models from being used on their network: Motorola MB8600 and the NETGEAR C7800. All other DOCSIS 3.1 devices should work with RCN since they have only excluded the two model numbers.
Hope this helps runpazu.
Can you recommend a cable modem to be used with RCN 20 Mbps. The RCN rep told me to not get one that is rated for higher speeds because i would have to pay for service at the next level.
Edit – I meant to say 250 Mbps not 20 Mbps speed
Hello KennyD,
While it is more than you currently need, the NETGEAR CM500 is the best bet here. The modem should reach anywhere between 300-375 Mbps (max theoretical download speed of 680 Mbps). It is only $60 at Amazon.
FYI, just because you have a faster modem than your speed plan, you don’t “have to pay for service at the next level.” For example, you could purchase an even faster modem now (DOCSIS 3.1 modem), and be set for the future without having to upgrade your modem later. You can stick with the 250 Mbps plan now, and in 3 years upgrade to the Gig Internet plan if you like. The RCN rep is wrong to say “to not get one that is rated for higher speeds because i would have to pay for service at the next level.” Thanks for the question, KennyD.
RCN support today told me that to get VOIP they will provide an emta modem, but the cable modem router that I provide needs to support VOIP. From the list above, none of them seem to support VOIP. What should I do? What should I buy to get VOIP?
Jaim, no VoIP devices are listed because that is the purpose of the eMTA. If RCN is telling you to use a VoIP device, the NETGEAR CM500V is a top choice.
But you should verify with RCN about your current modem router device. Reps are known for giving different advice to the same person. Contact RCN just to verify you need to actually purchase another device.
Modem Gurus,
Excellent help thank you. Especially about Puma chipset.
My problem stemmed from the first two RCN tech support people telling me that to get a landline I needed a cable modem router combo that supported VOIP.
Subsequently I have talked to three RCN tech support people that tell me the emta modem they provide, free for all their landline customers, works independently of the cable modem router combo. It is not necessary to have a cable modem router that supports VOIP. I can therefore make a choice from your list above, and obviously staying away from Puma devices, as I don’t have one currently. Thanks again
Thanks for responding back, Jaim. It didn’t make sense that RCN was telling you to use two VoIP devices together. Thank you for sharing your experience with the RCN techs.
Glad you got the information you were looking for in regards to what device you actually need.
Modem Gurus,
My assumption was that the emta plugged into the cable modem requiring the support.
Thanks again for your help.
You are welcome, Jaim.
What Docsys 3.1 modem/router combo is recommended for RCN? Thanks.
Unfortunately, since RCN has not yet approved the NETGEAR C7800, you don’t have the option of a modem router combo for DOCSIS 3.1. You could purchase an approved DOCSIS 3.1 modem and a separate router (the TP-Link Archer A7 is a cheap and popular option) to achieve what you need, Chris. Hope this helps you.
Hey, I was wondering if the netgear cm1000 is compatible with RCN?
Yes, Stephan, the NETGEAR CM1000 is on the list of RCN approved modems. Thanks for the question.
Is this equipment compatible with RCN?
ARRIS Surfboard Docsis 3.1 Gigabit Cable Modem Plus AC2350 Dual Band Wi-Fi Router, 1 GB Service (SBG8300)
While the ARRIS SBG8300 should be compatible with RCN, you should avoid it since it contains the Intel Puma chipset, which has issues maintaining a proper online connection. You can read about the bad Intel Puma 6 chipsets for more information.
Hope that helps, Maureen.
Is this equipment compatible with RCN?
NIGHTHAWK® AX8 8-STREAM WIFI 6 CABLE MODEM ROUTER(CAX 80)
Hello Cheng,
The NETGEAR CAX80 is a new device that has just released into the market a couple of months ago. While RCN does not outright claim that the CAX80 would not work with their network, like they do with the Motorola MB8600 and the NETGEAR C7800, it is best to contact your local RCN representatives and get a definitive answer for your residential address. RCN may not have had time to evaluate the NETGEAR CAX80 since it has just released.
Stay safe, Cheng.
Hi i have a c7800 as a present shall i get rid of it or wait?. Thanks
Jose L Brito, see the July 7, 2020 response below.
So glad I came across this list! Purchased the C7000 and it’s working great, it might even be safe to say it’s faster than the one we were renting. When I called to have it installed the guy told me I should’ve bout a 3.1 but didn’t offer to back up any particular brand. I’m happy with my purchase. Thanks for providing such an extensive list.
bought*
Glad you found the list useful. Enjoy your new NETGEAR C7000, Noa!
Hello,
Wondering if the NETGEAR Nighthawk AC1900 Dual-Band Cable Modem Router is a compatibale router with RCN in the Washington D.C. area?
Thanks!
Herman, it looks like you are referring to the NETGEAR C7000. Yes, that device will work with RCN and is even a recommended buy for the best WiFi modem.
Is the Ubee DDW365 compatible! I have the Ubee UBC1301 that I’m renting from RCN. I only have Internet with WiFi. I don’t have cable channels nor am I going to get cable! Can I purchase this device for 500 mbps
Yes, the Ubee DDW365 is on the RCN approved modem list. However, Doris, it will not get you 500 Mbps. You will need to choose a faster device to achieve that speed.
Thank you! I downgraded to 250 Mbs, will this work for that speed! If not what would you choose! I want something not too expensive
Yes, Doris, you should be reaching speeds around 250-275 Mbps with the Ubee DDW365. An alternative would be the TP-LINK Archer CR700, which allows for faster speeds if you upgrade in the future.
I bought the netgear cm600 and they said it couldn’t connect and the error was: DEVICE NOT REGISTERED ON THE NETWORK.
HEADEND CPE CONNECTIVITY DOES NOT EXIST.
CHECK LEVELS, AC POWER, VERIFY MAC/CXNK
oddly, I got to an rcn page on my computer which wanted to me set up my cable modem but it woulnd’t process the request. Any ideas if I got a dud modem or if that one doesn’t really work with RCN?
Thanks!
Hello Kris,
Sounds like you got a dud modem. The NETGEAR CM600 is one of the most popular modems and should definitely work with RCN. Return the modem and try another CM600 if you would like. Don’t use a pre-owned modem (if that is what you have) as that introduces different problems like the modem still registered in someone else’s ISP account or defective electronics.
Good luck, Kris.
I was recommended to buy 3.1 modem with 32 downstream. Which models are compatible ?
Mir,
The following are DOCSIS 3.1 modems:
ARRIS CM8200A
ARRIS SB8200
NETGEAR CM1000
NETGEAR CM1100
NETGEAR CM1200
All of these modems are compatible with RCN.
hello,
Does Arris CM8200 the same as Arris CM8200A and compatible with RCN? I search online for ARris CM8200 and the result shows CM8200A.
Thanks.
Yes, the ARRIS CM8200 is the same as the CM8200A.
Thank you.
Also, Can I use this (DOCSIS 3.1 modem) for internet that has the speed of 250mbps?
Absolutely, DOCSIS 3.1 is a bit of overkill for 250 Mbps speed, but it does offer you flexibility when your speeds eventually increase. In other words, in the future, when you pay for 1 Gig speeds, you won’t need to buy another modem.
I think some of the comments have helped clarify, but just to confirm: at the top you mention the Motorola MB8600 as the only one not compatible. But then in the actual list, most of the modems have an X for WiFi. Does this mean, for example, that the Netgear CM600 will work, it’s just not officially approved by RCN?
The NETGEAR CM600 is compatible with RCN. The X for WiFi means the device does not have WiFi capabilities; you will need a stand-alone router if you require WiFi. In other words, if a device has an X for WiFi, it means the modem is not a combo modem & router device. Thanks for the question.
You note that the C7800 is not supported by RCN in the comments section and refer to the top of the page that lists known non-compatible modems. The C7800 is no longer at the top of the page (only he Motorola is listed) does that mean that the C7800 is supported now?
You are correct, Mike, NETGEAR C7800 approval was added last month. RCN approved the device in May 2020. Thanks for the question.
Got mine setup with RCN in Lehigh Valley and it Didn’t work
The NETGEAR C7800 just got approved in May 2020. Not all of RCN local regions may have been updated yet. You should wait, Jose; RCN should allow this device (or RCN should put it back on the blacklist of uncertified modems).
So, does anyone know why RCN doesn’t support the Motorola MB8600? Seems like they’ve had the same disclaimer on their website for years but haven’t actually made any attempts to certify it.
No idea why the Motorola MB8600 continues to give RCN problems. It has been listed as a problem for several years as you pointed out, Adam. The good news is the NETGEAR C7800 was listed as problematic for months and was finally approved in May 2020. Hopefully that means the Motorola MB8600 will be approved soon.
When asked about RCN supporting the newer MB8611, RCN stated they had no information to give on the modem. So it appears that, for whatever reason, the Motorola MB86XX series has issues with the RCN network.
Why does RCN not allow use of BYO EMTA for their phone service? . I just picked up an “exact” same model as RCN Arris TM822G but RCN will not accept it .
Hello Ed B,
RCN has not given a reason as to why you must use their own eMTA. It could possibly be a way to collect a rental fee now or in the future. Companies are always trying to find ways to get more money.
You may want to contact RCN directly to see if they will give you an actual reason or say it is just a company policy reasoning (they will likely ask you for your address and account information). The likely answer is so that RCN can properly setup the phone service with their network for your address.
What about mesh wifi systems? Which ones are compatible with RCN?
Hello Robert,
If you are talking about a separate WiFi router from a cable modem, than any mesh WiFi system will work (for example, Amazon eero mesh WiFi system). Just like any router would work with RCN, any Mesh WiFi system will work with RCN as well.
If you are looking for an all-in-one solution (cable modem and mesh WiFi system), there is the NETGEAR CBR40 mesh WiFi system or the NETGEAR CBK40 mesh WiFi system with a single satellite extender. However, neither one is recommended since the cable modem included in these products contains the bad Intel Puma chipset – avoid these devices.
Have a nice weekend, Robert!
Hi, thanks for this site! Since RCN doesn’t provide this information on their own site, it is extremely helpful.
Question: Can you verify that 8 channel modems are still compatible?
Suggestion: Would love if the number of ethernet ports was included.
Thank you!
Hi Diane,
Yes, 8 downstream channel modems are still compatible with RCN service. Unfortunately, adding any more columns to the tables makes it too congested, especially since 50% of viewers of this site are on mobile devices with small screens. If you need multiple ethernet ports, look for devices that include WiFi, which is included in the tables.
Glad you find the ApprovedModemList.com website useful. Thanks for the question, Diane.
Hi! Is the NETGEAR C6250 Modem Router Combo compatible with RCN? I’m in Boston and I’m planning on buying the 100Mbps Internet Plan. Also, thank you for this entire thread! It’s been so so SO helpful! <3
Yes, Omisha, the NETGEAR C6250 is compatible with RCN’s network.
Stay safe.
Hi! I’m wondering what modem AND router you would recommend for the most reliable wifi (an NYC apartment building). I know I should go for a 32-channel, DOCSIS 3.1 model.
Daina, your recommendation is the ARRIS SB8200 DOCSIS 3.1 modem and the TP-Link Archer A7 WiFi 5 router. If you want an all-in-one device with the best tech included (DOCSIS 3.1 modem and a WiFi 6 router), the NETGEAR CAX80 is a possible choice.
Thank you so much! I really appreciate it. Happy holidays.
You are welcome. Happy holidays to you as well, Daina!
Hi! What do you recommend for a Chicago apartment that is very long (instead of wide/open) and has concrete walls? I know I need a DOCSIS 3.1 modem/router for the 500 Mbps internet package. Is there a benefit to getting a separate modem + router vs. an all-in-one? Thank you!
Anna,
Since you have apartment neighbors, you will want to look at the best WiFi tech available on the market today (WiFi 6). The NETGEAR CAX80 is both a DOCSIS 3.1 modem and a WiFi 6 router. While pricey, it will help to avoid conflicts with your neighbors’ devices.
You can read about the benefits and drawbacks on combo units and separate devices in the Cable Modem Buying Guide (look under the subheading Pros and Cons of Combo Modem and Router Devices). Hope this helps you, Anna.
Is “NETGEAR Nighthawk Multi-Gig Cable Modem CM2000” compatible with RCN cable?
Yes, the NETGEAR CM2000 is compatible with RCN. The device has been added to the RCN approved modem list. Thanks for the question, Jack.
Can you please advise if the Netgear CBK752 works on the RCN Boston network?
It should be compatible with RCN; only the Motorola MB8600 is not approved for RCN’s network. However, you should really stay away from the NETGEAR CBK752. This device contains the NETGEAR CBR750 modem router which incorporates a bad Intel Puma chipset. You will likely encounter connection issues. Ace, the reality is you should avoid this device.
I have a Arris SB6141 and am seeking RCN approved firmware, I believe the file name is R155_15-1-MOTOSB6141
How do I receive firmware from RCN for the above Cable Modem?
Only RCN can push the firmware to your modem (this is done automatically). If they haven’t pushed a certain firmware version yet, it is because they have not fully tested for stability and compatibility with their network. Unfortunately, Fran, you are stuck with what you have until an update by RCN is completed.
Hi – Is this compatible with RCN? – TP-Link Archer A7
Thank you
Yes, the TP-Link Archer A7 is compatible with RCN. It is just a router. Any router will work with internet service. However, only certain modems are approved by internet service providers.
Hi thank you for your list of RCN approved modems. It’s been super helpful. I have a TP-link Archer C50 so basically I really just need the cable modem. I am thinking of signing onto RCN’s 250 or 330 Mbps plan. So seems the following ones would work: Arris SB6183, TP-Link TC-7620, Netgear CM500, ASUS CM16, Motorola MB7420. Hopefully I am correct on this list. So my question: do you have a recommendation of one over another? I am looking for something that works obviously but also that lasts. Thanks in advance for your help.
Sally, the NETGEAR CM500 is your best option. The modem is supported by nearly every ISP (if you decide to switch internet providers later on). The CM500 is a really popular modem and will be supported for years to come.
Thank you so much
I was going to go with the NETGEAR CM1200 (w RCN). need up to 1Gig. which router is recommended or is there a different one that would pair up better? was thinking NETGEAR R7000 AC1900 or the R6700 AC1750. Thinking Netgear + Netgear makes sense? or would the TP Link Archer A7 which has been recommended be just as well?
If you go with all NETGEAR equipment, you can use the Nighthawk app if you have a smartphone. It will probably make the setup process a bit easier. The NETGEAR R6700 is a nice value (currently $82.30 from Amazon). The R7000 is almost twice the price, but you won’t get twice the performance, so that is not a good option. But if you need the best value, you can’t go wrong with the TP-Link Archer A7. There is a reason why it is a top-seller (excellent performance for the price – look at those Amazon reviews). Yes, some review are fake, but even if half are real, there are a lot of positive reviews. Your choice really should be between the Archer A7 or the R6700.
Hello! Great site! Very helpful and informative. I actually have the same question as the previous person who commented on which Modem/Router Combo to buy. I’m currently testing out the Netgear CM500 that was recommended. I’m also trying to decide between inexpensive routers under $150 that could complement this Modem well. I was also thinking of a Nighthawk router because it made sense combining two Netgear products. I was thinking of either the R6400 or R6700 or the TP-Link Archer A7 you mentioned or maybe another TP-Link product. I’m not that familiar with this brand so not sure how good it is but seems to be on everyone’s top list. Although there have been complaints of cheap manufacturing, parts and poor quality control, I think they’re made in Vietnam. So with TP-Link it might be a classic case of if you don’t get a lemon you’re good.
In regards to the Nighthawk R AC series the main complaint seems to be network drops and it seems to be an issue even with the R7000 due to poor revisions and firmware updates as well as cheaper chipsets being used in newer versions. Here’s a post from someone who discourages the R6700 on Amazon below. Sometimes you really have do to dig into those reviews to find truth. Also complaints of Netgear products crapping out well before time. I’m actually upgrading from two 6yr old Netgear products so I’m wondering if there quality is still good. Before that I had the old Linksys which were also pretty solid. Not sure if when it comes to routers these days it’s just a case of they’re all crappy and you might as well just go with the cheapest that will work for you but it’s been challenging finding one that seems reliable which is what I mostly care about.
Amazon Review of R6700v2 which is I guess still being sold as the original:
As others have stated, the Amazon listing is for the R6700 (AC1750) router. The router has now been updated by Netgear as the R6700v2. It uses completely different hardware, likely as a cost-saving measure.
– The original R6700 used the exact same internal components as the R7000 (AC1900) model. i.e. a Broadcom dual-core chipset at 1Ghz. It only lacked a special slightly faster WiFi mode at 2.4Ghz and the additional rear USB 2.0 port from the R7000.
– The R6700v2 uses a MediaTek chipset and is now advertised on the box as a ‘dual-core’ processor.
Note that most positive reviews / speed tests for this model are for the R6700 version, *not* the v2. Every indication I’ve seen is that the R6700v2 is a step down from the original model in terms of speed, reliability, and features (for example, not supporting popular alternative firmware such as DD-WRT).
Here’s what you should order instead:
– The R6400 if you want to stay at the $99 price point (https://www.amazon.com/NETGEAR-AC1750-Gigabit-Router-compatible/dp/B00Z0V2NQ8) or – The older R7000 (AC1900) which is $50 more but identical hardware to the original R6700. Most normal households probably don’t need the R7000, and would be perfectly fine with the R6400.
Thanks for all the info, Mike. Unfortunately, router reviews are not reliable. Due to differences in building materials, number of devices, neighbors’ devices that can cause interference, a router may perform well in one home, but terrible in another. Wireless routers are hard to gauge performance from due to different situations for every home.
You should try the TP-Link Archer A7. It is inexpensive and of course, if you get a lemon, return it (nobody is 100% perfect in manufacturing – too many variables to control, like shipping and handling). If a router does not perform like it should, return it and try another product.
hello will the tp-link archer 47 work with an orbi router. and what are your thoughts on the Arris surfboard sb6183?
No, Andrea, those devices are both routers. You only use one of the two. The ARRIS SB6183 is a really solid modem (one of the few good modems that ARRIS makes).
I have a Netgear Nighthawk R6700 (AC1750) router, and I’m having real problems with internet performance. If I take the ethernet cable directly from the (Netgear) cable modem and plug it into my laptop I can get speed tests > 600 Mbps. If I plug the cable into my router, and then connect my laptop to the router with an ethernet cable, the speed is never above 250Mbs. I bought a replacement R6700 thinking it was a hardware issue, but I had the same problem. I spent quite a bit of time with Netgear phone support (free for the first 90 days). They made a few suggestions, but they gave up too and offered to send me a replacement. Since the last two had the same problem, I’m not optimistic that a 3rd try with the same model will give me better results.
Don’t bother with a third model. You may have interference from the devices in your home or building materials in the walls that are limiting your performance. Here are a couple of suggestions for you, Rich. You may want to try a mesh network to get better coverage in your home. A better option is to go with WiFi 6, the latest standard, which can improve speed and better handle congestion. TP-Link’s WiFi 6 article explains the advantages of of the new standard.
The recommended WiFi 6 router, the ASUS ROG Rapture GT-AX11000, is out-of-stock by Amazon (only third-party overpriced sellers have stock). You can view Amazon’s stock of WiFi 6 routers on this page if you decide to go that route. There are a couple of TP-Link WiFi 6 routers currently on sale.
Because everyone’s home is different (different variables to account for), troubleshooting wireless routers is difficult.
**Update: Just re-read your comment, Rich, and you are not using the router in wireless mode; you are directly connecting the router and laptop with an ethernet cable. That seems like a bad ethernet cable. Have you tried a new ethernet cable? Have you tried running the laptop in WiFi mode? What speeds do you get doing that? Try another ethernet port on the back of the NETGEAR R6700 (maybe the LAN port you are using is bad).
Hi, first of all thanks so much for this helpful site. The info is very helpful. I was wondering about your opinion of Netgear modems vs other companies. I searched through the relevant modems on amazon and (while I know I need to take most reviews with a grain of salt) found lots of comments about Netgear modems only working for a year. Do you have any insight into that?
Thanks again!
It is difficult to judge reviews due to many being fake or spam reviews. Some could even be left from competitors to try to make a competing product look bad. Overall, all products could develop problems from any manufacturer. Every company will get bad (and good) reviews. If NETGEAR modems stop working after one-year, that is concerning because their warranty is for only one-year. Patrick, if you are concerned with these reviews (there is no way of telling how many devices are returned to NETGEAR), you have a couple of options.
One, you can choose another brand. But again, every manufacturer can have bad reviews. Some people have unrealistic expectations. A dog may slobber all over the modem or a kid may throw it against the wall and the customer still expects it to work. Reviews often leave these details out. A second option, is to purchase a protection plan. For Amazon, this is listed in your shopping cart or under the ships from and sold by info. Often these protection plans are priced according to the purchase price of the modem. Hopefully, this helps you make a purchase for whatever brand you choose, Patrick.
Good morning, would you recommend getting 1Gbps internet and also buying the NetgearC7800 Nighthawk Cable Modem WiFi Router Combo that should allow up to 2Gbps or getting the 500Mbps internet plan and buying the Arris SURFboard SBG7600AC2 which should allow up to 600Mbps. We currently have a medium sized house with 4 tenets all running computers/laptops and the usual phones/tech devices. At least 3 users use computers for work/school and 2 of us also use computers for streaming/content creation. Appreciate all the help!
Jack, do not buy the ARRIS SBG7600AC2; it contains the bad Intel Puma chipset. You want to go with the 1 Gig plan and NETGEAR C7800 anyway. It is a DOCSIS 3.1 modem (the latest technology) that will offer you more years of use and also offers faster speeds for when you upgrade in the future. You won’t need to purchase another modem once 2 Gig speeds become available.
I’m considering a switch from Comcast to RCN and pretty sure my trusty zoom will need to be replaced. It’s only an 8 channel, and about 6 yrs old — but I’m getting excellent connectivity when used with an Apple AirPort Extreme. I was wondering if it’s possible to get a modem + router combo but disable the router portion … it would be a good back up if my current router dies— but I’d rather keep using it for now. Does that make sense, or shoukd I simply get a modem-only and then deal with router replacement when necessary? Also, if I rented a modem from RCN ( any idea which models they lease?) could I still use my own router? I’m thinking of getting either a 300 Mbps or 600 speed plan. Thanks! Great, useful site.
Yes, it is time for an upgrade for your modem, Art. Yes, you can use a modem and router combo unit with your Apple AirPort Extreme. You would need to enable bridge mode (NETGEAR explains bridge mode here). You may find it more convenient (and cheaper) to simply purchase a cable modem without a router since often times a combo unit’s WiFi performance is hampered on those types of devices. Purchasing a separate router often leads to better WiFi performance and if your modem becomes defective, you don’t have to scrap an entire combo unit; you would still have your router to keep. Your Apple AirPort Extreme should last you years; no need to buy something you don’t actually need right now.
For the RCN modem models they have, they only list this page with no modem models named but a few pictures. It really depends on what your local RCN office has in their inventory. Yes, you can still use your own router when renting a modem. Renting is expensive (minimum charge is $10 a month – it is actually cheaper to just buy your own device). Hope that helps you with a decision, Art.
Really appreciate this advice — especially since you’ve confirmed my thoughts about the potential downsides of renting and combo packages. I love the old AirPort Extreme, and the ease of managing the network on the rare occasions when something needs to be tweaked, so it’s good to know there’s still some life in it. I’ve been offered a used modem that would probably be fine once reset, but I think it’s best to buy new and get a warranty (despite horror stories about companies failing to honor them) and a return window if it doesn’t work as expected. RCN doesn’t seem too settled on 3.1 yet, so at this point I think an inexpensive DOCSIS 3.0 is my best bet — if at some point I decide to boost my speed, I can always shop again! The savings on service would pay for new equipment in a couple of months! This modem/router question has been holding up my decision to switch-so thanks very much!
Thanks for checking out this site, Art. Another thing to consider about used modems is they may not have been deactivated from the previous user’s account and you don’t know what condition it will be in. Maybe somebody used their modem as a kickball. So, buying new is the best option (especially with electronics). Stay safe, Art.
I was thinking about the Arris DG3450 WiFi cable modem with MoCA 2.0 for RCN. Any thoughts? Do all cable modems have MoCA?
You will want to skip the ARRIS DG3450, as it contains the defective Intel Puma chipset. Bob S, most devices do not have MoCA.
The following modems support MoCA:
ARRIS DG1660
ARRIS DG1670
ARRIS DG2470
ARRIS DG3270
ARRIS DG3450
ARRIS SBG6782-AC
ARRIS TG1682
ARRIS TG2472
Hitron CODA-4582
Hitron CODA-4589
Hitron CODA-5512
Hitron CODA-5519
Hitron CODA-5712
Hitron CODA-5719
Hitron CGNVM-2559
Hitron CGNVM-3582
Hitron CGNVM-3589
Thanks. Good Advice. I currently have the DG2470 with MoCA 2.0 which was supplied by RCN and they are now charging 14.99/Month rental. It probably has the defective chip set also. There have been times where it just stops and I have to reboot the entire system. I have the 250MBS download speed, but I’m more concerned with the WiFi transmission range. I definitely need MoCA since I have a second TV upstairs and a 6 channel TIVO box. I’m guessing the MoCA is in the TIVO and not required in the WiFi Cable Modem/Router. What do you think is the best replacement. I will most likely never go above the 250MBS, but want good WiFi? I really appreciate your site. You are providing a great service.
Yes, the ARRIS DG2470 also contains the bad Intel Puma chipset. If you are concerned about WiFi transmission, a Mesh WiFi Router System may be what you need. A couple of options for you, Bob, purchase the NETGEAR CM500 (no MoCA adapter built-in) and combine that with the NETGEAR Orbi RBK50 Mesh WiFi. Another option is to buy your own MoCA Network Adapters and use them as needed for your situation. Hope that helps you, Bob.
I am considering to upgrade to Gigabyte and thinking of buying Motorola MG8702. Does this Modem/router compatible with RCN? Any thought on this modem/router combo?
John, the Motorola MG8702 should be compatible with RCN, as RCN only lists the Motorola MB8600 as not compatible with their network.
The Motorola MG8702 will be an outstanding device for you, John. The only downside is the router is only WiFi 5, while the latest standard is WiFi 6 if you are “future-proofing”. Thanks for the question and the MG8702 has been added to the list above.
Modem Gurus,
Thank you, you have been very helpful. I have decided on the Netgear C7000 which actually has slightly better WiFi than my current unit. I currently have no WiFi issues, so this should be great. I will check with RCN on the MoCA situation first before purchasing. The price at my local Walmart store is $159.99 which seems very good and will be paid off in about 11 months.
Thanks again.
Hey modem gurus. Because of the recommendation here to try and save money I bought a used CM500 and went through the steps with RCN to register the mac address to their network. Once it gets connected, the upload portion of a speed test kills its connection to the cable company, and it has to reconnect. I’ve powercycled multiple times, disconnected / reconnected router and modem, done a factory reset, and the connection is still intermittent. I’ve been on with support and all they can recommend to do is powercycle, and it doesn’t change anything. Firmware is v1.01.5
Right now it’s showing 8 locked channels, and the power meters on http://il.speedtest.rcn.net are in the green.
Is this a bad modem? Or is there a step I need to take?
Aaron, you should definitely return that modem. Used electronics are never a good idea. You do not know what abuse the device went through with the previous owners. If you are having this many problems with the NETGEAR CM500, you should return it and buy a new modem. A modem, when connected properly, should not cause this many issues for you, Aaron; it should just work.
Question –
I am looking for a combo wifi/modem and saw this one: ARRIS SURFboard SBG8300 DOCSIS 3.1 Gigabit Cable Modem & AC2350 Dual Band Wi-Fi Router. Is this compatible with RCN? Yes, I am a gamer and want the best for not only my computer gaming but also my other gaming systems.
I also have your highest internet service, until of course you come out with a higher one.
The ARRIS SBG8300 is compatible with RCN. However, you should avoid it, Ingrid, since it contains the Intel Puma chipset, which is bad for gaming. The best modem/router combo is the NETGEAR CAX80, which has WiFi 6. However, it is not sold by Amazon and third-party sellers have it listed at over-inflated prices. If you need something right now, the NETGEAR C7800 would be a solid option and it has no Intel Puma chipset.
Question – is the NETGEAR Orbi CBR750 compatible with the RCN system. Only need internet compatibility. I would like something compatible with the Orbi Wi-Fi mesh system
Yes, the NETGEAR CBR750 is approved for RCN. However, the device contains a bad Intel Puma chipset, so you should avoid that, Dan.
Thank you Modem Gurus. Great feedback. Would this mean I should also steer away from the Orbi Mesh Wi-Fi as well?
Appreciate the quick and excellent response.
The NETGEAR Orbi Mesh WiFi Router will be good to use. Stand-alone routers do not use Intel Puma chipsets. Stand-alone routers typically use Qualcomm or Broadcom chipsets.
Hello Modem Gurus,
What is your recommended modem to use with the Orbi 6 mesh Wi-Fi system?
Thank you
The ARRIS SB8200 would be an excellent choice. If you want everything to be NETGEAR, the NETGEAR CM1000 is another option. Both are DOCSIS 3.1 modems and both use Broadcom chipsets (not the bad Intel Puma chipsets).
Thank you Modem Gurus. I just responded to to a previous question about the quality of the Netgear Mesh WiFi quality or chipset. Do you have any concerns with use of the Netgear WiFi 6 mesh router system?
Dan, please read the comment above.
Thank you very much, My questions didn’t gel as I typed the first one.
Hello Modem Gurus, I have decided to purchase an Orbi RBK853 system, possibly in next week depending on price. If it was your personal; system. what would you use between the Arris SB8200 or Netgear CM1000? Does either work better with an Orbi mesh system or better features or fewer problems/better support. Do either have an iOS app to maybe manage re-powering?
Appreciate the great feedback
The NETGEAR CM1000 should give you a bit more of a seamless setup since you would also be using the NETGEAR Orbi RBK853. Modems typically don’t have stand-alone apps. The NETGEAR Orbi does have an iOS app to control your WiFi network. You can find features of the Orbi app here.
Thank you again. Can you suggest an acceptable telephony modem which is compatible with RCN 1G service? My Docsis 3.1 cable modem is standalone. The current separate RCN telephony modem is an Arris TM602G which appears to be as expensive as a good 1G Docsis modem. I would only use this modem for telephone service
Dan, you need to use a RCN provided eMTA (phone modem) if you require phone service. That is RCN’s policy; you can’t purchase your own eMTA.
I currently have RCN as my ISP and cable TV provider.
I have an ARRIS 24 x 8 Docsis 3.0 Modem with the Intel Puma chip.
I have the Cisco Linksys EA8500 Router.
I use the MoCa capability.
It was suggested that I move to the ARRIS SB8200 cable modem.
My understanding is the SB8200 does not support MoCa
I would appreciate the guidance of the Modem Gurus.
Thanks in advance!
Most devices don’t have MoCA capability as Motorola has pointed out on their site.. It sounds like you have an ARRIS DG2470, which does contain the bad Intel Puma chipset. The ARRIS SB8200 has no MoCA capability, but you can purchase separate MoCA adapters for your needs, BillH.
Hi Modem Guru(s),
You are a wizard—and patient!
Four interconnected Qs for you.
1) I switched in June to RCN for internet. Got my own modem, a Netgear C7000. Solid, but pricey. I could return it… but tell me, is the Arris 2470a (which I may rent for $15/mo from RCN) just as good?
2) A related Q re: VOIP from RCN. RCN throws in their eMTA (voice device) *if* you rent their internet modem. But they charge $8/mo for the eMTA if you provide your own internet modem. I guess I lean toward the RCN package: Arris-rental-with-freebie-eMTA. Is this a reasonable approach? Or is the Arris so inferior to the Netgear that I should not switch?
Oh, and 3) do these internet devices always have 4 ethernet ports? We need at least 3 given our set-up.
4) One last crazy Q (outside the modem realm per se, and driven by my being a 20th-century geezer):
Is there any way to avoid the whole VOIP approach, and retain POTS (plain old telephone) voice service with RCN or anybody else? I’d feel safer with POTS in case of complete power failure.
Many thanks.
– Jeff
Hello Jeff,
1. No, avoid the ARRIS DG2470 (DG2470A); it contains a bad Intel Puma 6 modem chipset defect. You may encounter connection issues. You are better off with the really solid NETGEAR C7000.
2. Do not switch. Renting is never a good idea, because you are literally throwing money away. You will never “pay-off” the rental; you just keep paying for it over and over again. Plus with rentals, you may be stuck with a defective chipset modem. Jeff, you are better off purchasing your own devices, so you stay in control of what is used in your home.
3. Yes, most modem/router combo units include 4 Ethernet ports. A stand-alone modem will usually only include one Ethernet port; on a rare occasion, two ports may be included.
4. Keep in mind, you are not required to use an internet provider’s phone service. There are a few options here, Jeff. First, you can use your local phone company’s service. Second, you could use a smartphone. If you don’t use phone service a lot, you can purchase a TracFone with one-year of service (1500 minutes) for $60 on eBay.
Third, you can get away from RCN’s eMTA by using an Ooma device. Ooma uses any internet connection to give you inexpensive phone service (but it is still a VoIP service).
Fourth, if you don’t want to deal with a power failure for your phone service through any use of VoIP, you can purchase an uninterruptible power supply (UPS); it will power devices connected to it for several minutes or hours depending on the model you purchase. The more devices using juice, the quicker the UPS will fade. Keep in mind, if a tree takes out a power line or phone line, your service will stop anyway. The only way around this is to use a mobile phone (as long as the cellular network is still online).
Hopefully all that info will help with your situation, Jeff.
Hello,
Thank you for this amazing resource! I will be moving to Somerville, MA, and switching from Fios fiber to RCN cable 250 Mbps. I am pretty sure I will end up getting the 500 Mbps or 940 Mbps over the next year or so. I will be in a 2000 sqft condo so hoping to get a Modem/WiFi combo in one device instead of getting these separately that will give me good speed and coverage. So far, NETGEAR R7000P-100NAS has been recommended to me.
Would you be so kind as to make a few suggestions as to which modem/WiFi combo (in one device) I should get that will allow me to bump up the speed in the future without having to buy a new one? Thank you so so much!
You will certainly need a DOCSIS 3.1 device to achieve 1 Gig speeds and beyond, so for future-proofing, check the list below for your modem/WiFi combo options.
Motorola MG8702
NETGEAR C7800
NETGEAR CAX30
NETGEAR CAX80
Thank you so very much!!!
Excuse my ignorance, just to be sure, but all of these will work with an RCN 250 Mbps connection too, correct?
Thanks!!
Absolutely, these modems will handle slower speeds as well, Prof. With a DOCSIS 3.1 device, you are covered from 1 Mbps to at least 1000 Mbps (or 1 Gig) speeds.
Perfect! Thank you so so very much!
Hi. Do you know if the ASUS CMAX6000 compatible with RCN? I see it listed for other providers. Thank you.
Yes, the ASUS CMAX6000 is compatible with RCN. The device has been added to the RCN approved modem list above. The only bad modems for RCN are the Motorola MB8600 and the Motorola MB8611. Thanks for the question, Greg P.
Thank you. This is a fantastic site.
Thanks for the kind words! Let your friends know about this site.
Hi. I own a Arris SBG8300 and have been using it with Comcast/Xfinity about a year now. I see it’s listed on the “RCN Approved Modem List” and today I discovered it has the dreaded Intel Puma Chipset. I’ve gotten some confusing info from calling RCN tech person (no you can’t use your own modem/router combo even though the RCN rental is a modem/router combo). Can I use this Arris SBG8300 with RCN internet service? I know it’s got the Intel Puma Chipset but too late, I already own it.
That tech is just trying to get you to rent a device from RCN most likely. RCN rental fees are steep. Always talk to multiple service reps if you don’t get the answer you want. Yes, the ARRIS SBG8300 should work on RCN’s network. If, for some reason, RCN continues to hassle you about your device, it could be a good opportunity to purchase a non-Intel Puma chipset modem, Michael G.
Thank you Modem Gurus!
While I have your attention, what kind of problems do the Intel Puma chipsets cause?
MG
Hello, Michael G., you can read about the Intel Puma chipset issues here, which also contains the long list of bad modems.
Hi I was wondering if the TPlink ac1750 router will work with rcn WiFi service? https://www.tp-link.com/us/home-networking/wifi-router/archer-c7/
It sure will, Mitch. You can use any router you choose for RCN. Only modems are specific to internet providers. In other words, WiFi is not provided by RCN; they only provide internet. Your router provides WiFi.
Hi, Thank you for all this valuable information your providing.
If you could possibly help, I currently subscribe to RCN’s gig internet and was hoping to buy my own cable modem. I found one within my price range and was hoping you could tell me if it’s supported or not.
Hitron DOCSIS 3.1 Cable Modem (DOCSIS 3.1 Modem), 6 Gbps Max Speed | Approved for Comcast Xfinity and Charter Spectrum | White (2X 1 Gbps Ethernet Ports)| CODA https://www.amazon.com/dp/B0981553MT/ref=cm_sw_r_apan_glt_fabc_F9KAF3VWFEZ76KJT40KB
It’s says charter and Xfinity approved, but the majority of modems I’ve come across say this without ever mentioning RCN.
Thank you
Fran, avoid the Hitron CODA as it contains a bad Intel Puma chipset. You will likely run into connection issues with the device. Really avoid anything Hitron as they almost exclusively utilize Intel Puma chipsets. You want something stable like an ARRIS SB8200 (no defective chipset). If you want to future-proof, the ARRIS S33 offers speeds up to 2.5 Gig (currently on sale for $170). When RCN upgrades their speeds, you will be ready for it instead of having to purchase a faster modem later.
Hi, Thank you for the quick reply. You probably saved me allot of future headaches with my modem of choice. I also did check the Intel puma chipset page and didn’t see this specific model mentioned (coda-S12) though just the coda and many other models were listed. Also many thanks for the Arris S33 recommendation, that will now be my number 1 choice.
Thanks.
You are welcome, Fran. Yes, CODA and CODA-S12 are the same.
Hi,
I’ve been trying to get 2 of the Motorola SB6141 modems on RCN’s network for 300Mbps speed. Previously the modems were used on TWC successfully when the husband and I were living apart, so I know they are functional. RCN was able to provision the modem on their network, but the modems don’t have any connection. I’ve factory reset them thru the web interface and power cycled multiple times, but still no connection.
Should I throw in the towel and buy another modem? If so, what do you recommend?
It does sound like it is time to upgrade to a new modem, although a service tech should verify your cable line is good. Otherwise a new modem won’t fix your issue. But an easy way to test if it is not a modem issue is to purchase a new modem and if you still have no connection, RCN will need to fix your cable. The NETGEAR CM500 is a really good value modem to try, Vivian.
We are moving into a Condo next month and will switch from Verizon FIOS to RCN. The Condo is already wired with Coax and I don’t need to have Verizon come in and drill holes, install an ONT and route cables. I already purchased the Arris SB8200 as the modem. Do I need to purchase an Moca adapter? The ones you linked to in earlier posts are pretty expensive. The RCN website shows only the use of a MoCA filter which is much cheaper. Can I go this route or do I really need to spend more? We only will have the single modem with a TP Link router for WiFi.
Since you are asking about a MoCA adapter, you probably don’t need one for your use. You only need a MoCA adapter for specialized setups. The RCN self-installation kit includes a MoCA filter, Alan G, so you may ask RCN to see if they will provide one to you since you purchased your own modem. The filter is required to prevent neighbor interference.
CM1000 and CM1000v2 are not working anymore (1 Gigabit plan can only give 30mbps max) with RCN gigabit plan since December 2021. Many suspecting users are buying these cheaper models because of the information here. Have you confirmed the compatibility yourselves, authors?
What city and state do you live in, Rob N? You can verify modem requirements by RCN on this page. The only modem RCN has trouble with on their network is the Motorola MB8600. Until RCN lists the NETGEAR CM1000 or CM1000v2 as a problem, you are likely encountering an issue just in your local area.
RCN gave me a Arris DG3450 with my 1 GB plan. Frequent lag spikes. Bad chipset, I suppose. Field tech told me NetGear Nighthawk would work, but to avoid 1000 and 1200 models. I bought the AX2700, hooked it up, called to activate. They get wired internet up fine and no Wi-Fi. Phone tech says (after an hour of nonsense and talking with her supervisor), it won’t work as a modem, only a router. Is that right? That can’t be right. I was getting 1200 mb wired (just no Wi-Fi speed) so it apparently works fine as a modem.
Adam, the ARRIS DG3450 does have a the bad Intel Puma chipset. It looks like you are utilizing the NETGEAR CAX30S. RCN only provides an internet connection to your home and you say you have a connection, so that is good. WiFi is not dependent on RCN; it is dependent on the device you are using. This is a NETGEAR issue.
Here is the support page for the NETGEAR CAX30S to help configure your router to send out a WiFi signal. So, RCN is wrong saying that your device will only work as a router. If you can run a speed test, then you can verify you have a wired internet connection at least. Hopefully you know the WiFi light on the device needs to be lit (on).
Other resources for you Adam:
CAX30S User Manual
CAX30S Quick Start Guide
I have a Netgear CM1200 and was getting fantastic results 940mbps down and 30mbps up. Until recently when RCN merged with Astound, I believe that Astound might be using the incorrect firmware for the CM1200 as I get 940mbps for the first ten minutes post provisioning, then immediately get throttled to 30mbps for both the down and the up streams. I believe Astound has messed up the firmware or that they are forcing symmetry for the gigabit members, but since they don’t offer 940mbps for the upload, the download may be forced into symmetry with the upload resulting in a 30/30 connection.
You should definitely contact an Astound service tech. They would be able to confirm if you have the correct firmware update (you do not have the ability to update modem firmware yourself; only Astound can do that for you). Since you are on a Gigabit plan, you should not be restricted to just 30 Mbps download. Contact Astound and get an evaluation of your connection. Something is certainly off with your situation.
Hello – is the Arris T25 compaitable with RCN? Specifically the 940mbps internet speed plan?
Sorry, Dan, Astound Broadband Powered by RCN does not support an eMTA, which the ARRIS T25 is (voice and internet modem – see the third bullet point at the top of the page). The T25 also contains the dreaded Intel Puma chipset anyway, which will likely give you connection troubles anyway.
Hello.
Is the NETGEAR cable modem CMD31T And router NETGEAR AC1750 model R6350 compatible with RCN?
Than you.
Unfortunately, the NETGEAR CMD31T is not compatible with RCN since it is only a 4-channel download modem (the minimum for RCN service is 16-channel download). You might be able to get a service rep to activate the CMD31T for your local region, but that device is really old and slow.
Eddie, you are free to use any router with your internet service. Only modems are certified with internet providers. In other words, you need to use a specific modem, but can utilize any router.
Thank you for your help
No problem, Eddie!
Any suggestions on a modem/router combo or a stand alone moden and separate router? 1400sqft home 2 stories plus attic. Will be going with either 940mbps or 1200mbps service. Any help would be greatly appreciated. Also do you recommend hardwiring ethernet ports into different rooms throughout the house?
Be aware that if you go with 1.2 Gbps service, Astound Broadband requires a rental device (a new rule they just implemented). Their reasoning is because most modems are not capable of such speeds, which is true. However, there are a few modems that can handle 1.2 Gbps, such as the ARRIS S33. You should be able to purchase your own modem even for 1.2 Gbps speeds, but you will likely encounter a huge hassle with Astound Broadband, because they will want that rental device to be in your possession.
Check the question Are there any BYOM restrictions? to view the new required rental for 1.2 Gbps service.
Hardwiring is always the recommended option if that option is available. It eliminates lag and always gives consistent performance. Nothing is more annoying when trying to stream a video or play a game only to have it buffer or lag due to the inconsistency of a wireless signal. Typically, purchasing a separate modem and router is better. If one item breaks, you don’t have to replace your entire networking equipment. But you may be limited by Astound Broadband requiring a rented device, even though there are options available on the market now. They will likely twist your arm to rent, but you have retail options.
Stand-alone modems capable of up to 2.5 Gbps speeds: ARRIS S33, NETGEAR CM1200, and NETGEAR CM2000.
Combo units: Motorola MG8725, NETGEAR C7800, NETGEAR CAX30S, and NETGEAR CAX80.
You have limited options on modems capable of 1.2 Gbps speed, but you may not have a choice, because Astound Broadband may force you into a rental device anyway, Gentle.
Ty for the advice. If getting my own equipment on the 1.2Gbps is to much of a hassle should I just consider the tier below which will be more then enough for what I need, which should then open up more availability to use my own equipment and also open up more choices?
Keep in mind even if you go with a slower speed, eventually your speed will be upgraded by Astound Broadband in the future. In five years, they may offer 1.5 Gbps speed as their slowest speed tier; your slower speed equipment wouldn’t be able to handle all that speed. You would need to upgrade your equipment again. It is something to consider; perhaps going with the fastest devices now is cheaper in the long run. But if 1 Gbps is enough for you, even in the future, then yes, you have more devices to consider for your equipment choices (just choose something that is rated at DOCSIS 3.1).
I have a netgear C7800 cable modem router that has older firmware on it (currently running V3) but latest version is V6. I’m trying to get updated to the latest version but not able to do it.
I contacted Netgear but they told me that your ISP will push firmware updates.
My ISP provider is Astound (Powered by RCN) & i contacted them as well but they are not helping in this as well.
Unfortunately you are stuck with the firmware version the ISP gives you. Eventually Astound will update you to the latest version. For reference, there is this NETGEAR firmware version update list. You are correct in that the customer cannot update their own firmware version; only the ISP can push updates to your device. You could try contacting Astound Broadband powered by RCN again. Pinkesh, sometimes talking to someone else will give you better results.
Hi Modem Gurus,
Just want to say first – great site, so much useful info and helpful advice from your team here! Thanks for this service and education!
My situation – Spectrum has me paying $70/mo for 500Mbps internet that I barely use to capacity and told me that I’m already receiving “discounts” for this service/price. RCN/Astound has 600Mbps for $35/mo for new customers and I’ve decided to switch over since Spectrum showed no interest in retaining me as a customer. So now, I’m shopping for a new modem to replace my 10yo Motorola SB6141.
I’ve considered your comment above regarding the “pros” about buying a newer modem and was eyeing the S33 at $170 or so. It’s way more modem than I’ll need for the foreseeable future given my use-case and for me, it’d only be for future-proofing should the ISP raise their minimum speeds. I also started looking at the best-value CM500, which I can get for about $50. I realize that the CM500 is “just” a DOCSIS 3.0 16×4 vs. the S33’s DOCSIS 3.1 32×8.
This leads me to my questions that I hope your team can help me with:
*Is the CM500 still recommended in the twilight of 2022 for an entry-level 600Mbps RCN/Astound connection?
*I noticed that the CM400 model was removed from the list in 2022 – Do you anticipate the CM500 to be usable for a couple of years more?
*If not, then what would be a mid-range modem (~100) that might last a little bit longer (if I continue to use the ISP’s lower speed connections)?
I realize that the answers to my questions may be the team’s best educated-guesses but it’d more than my layman’s knowledge.
Thank you and happy holidays!
Hello WiFiPriceSkyHi,
Thanks for enjoying the site!
1) Yes, the NETGEAR CM500 is still recommended. Keep in mind that the retail box states for speeds up to 680 Mbps, you will likely only reach speeds less than 400 Mbps (somewhere in the 350-370 Mbps range).
2) The CM500 is such a popular modem that it “should be” still useable for the next couple of years. However, an internet provider can make the switch to DOCSIS 3.1 at anytime. Internet providers Midco and Mediacom have already made that switch; although, they are smaller companies. Astound is a bigger company and may offer to support DOCSIS 3.0 longer. No guarantee and Astound will likely keep the switch to DOCSIS 3.1 a secret until they are ready to make that transitional move. You may also be grandfathered in with an older modem. Comcast allows this. Even if an older modem is removed from an approved modem list, an unapproved modem may still be used for months or years later (until an internet provider says enough is enough).
So, go with the NETGEAR CM500 if price is a concern. The ARRIS S33 is the fastest modem available. Certainly more expensive, but you wouldn’t have to worry about obtaining all the speed you are paying for with Astound. The CM500 is the most popular DOCSIS 3.0 modem, so it would likely be the last modem removed for approval. The only downside to the NETGEAR CM500 is the limited speed of less than 400 Mbps. If you can live with that, then the CM500 is your best choice.
Here is what is posted on Astound’s website for speed tiers. Use this for future reference. Note, using a 16-channel modem like the NETGEAR CM500 may limit your speed to only 250 Mbps.
Speeds up to 1 Gig (940 Mbps) – DOCSIS 3.1 modem.
Maximum speeds up to 400 Mbps – DOCSIS 3.0 modem (32 or 24 channels down)
Maximum speeds of up to 250 Mbps – DOCSIS 3.0 modem (16 channels down) or better