Intel Puma 6 Modem List Chipset Defects

Welcome to the Intel Puma 6 modem list chipset defects explanation page. Below you will find information on what the Puma 6 problem is, the modems to avoid purchasing, and the class action lawsuit.

Click here to jump to the Do Not Buy Intel Puma 6 modem list.

Intel Puma 6 Defect Explained

Do Not Buy Intel Puma 6 Modem List Logo
Do Not Buy Intel Chipset Modems

Intel’s Puma 6 chipset included in several cable modems is defective as it allows high spikes in network latency quite often (slow web page loading, for example). These severe network latency spikes interfere with online gaming, streaming video, or simply surfing the web. Network jitter (variable latency) also causes problems.

The Puma 6 modems suffer from both latency and jitter. Some firmware updates have only temporarily fixed the problem and it seems Intel has no real fix for the issue. Consequently, these bad internet connections landed cable modem maker ARRIS in trouble with a pending lawsuit filed in California.

Puma 6 Defect Lawsuit

The Schubert Jonckheer & Kolbe law firm has begun an investigation into the issues and has filed a class action lawsuit for consumers of affected modems. If you own one of the affected modems (listed below), you can file your issues and get alerts to any possible legal action against Intel and the cable modem brands (particularly ARRIS). On the Schubert Jonckheer & Kolbe Puma 6 Chipset Defect page, you can check out the full lawsuit details.

Easiest Way to Spot a Defective Puma 6 Modem

ARRIS SB6190 Intel Puma 6 Modem List
See this Intel logo on a modem package? Avoid buying these potentially defective modems.

Looking at the cable modem package is the easiest way to find if a modem is potentially defective. If you see an Intel logo on the box, stay away from it. Reports of the Puma 7 chipsets may also be defective, so the best thing to do is avoid any cable modem with Intel inside.

Note: not all Intel Puma chipset modems will have an Intel logo on the front of the modem package.

Some bad modems like the NETGEAR CM700 and NETGEAR C6300 do not have Intel logos on the front of their modem packages. Therefore, read the Intel Puma 6 modem list below to avoid purchasing a possibly defective modem.

While Intel has issues with the Puma chipsets, Broadcom chipsets (produced by Broadcom Inc.) suffer no troubles at all. For example, you can feel safe using a modem like the ARRIS SB6183 or NETGEAR CM600 as they use a Broadcom chipset.

Intel Puma 6 Modem List – Do Not Buy These Cable Modems

Do not buy these modems to avoid current and future problems with the Intel Puma chipsets. This list also includes Intel Puma 7 chipset modems.

Devices highlighted in bold are the more popular cable modems (best-selling modems).

USA Region

Hitron CDA3
Hitron CDA3-35
Hitron CGN3
Hitron CGNM-2250
Hitron (CGNM) CGNM-2252
Hitron CGNVM-2559
Hitron CGNM-3550
Hitron CGNM-3552
Hitron CGNVM-3580
Hitron CGNVM-3582
Hitron CGNVM-3589
Hitron CODA-45
Hitron CODA-4502
Hitron CODA-4580
Hitron CODA-4582
Hitron CODA-4589
Hitron CODA-46
Hitron CODA-4602
Hitron CODA-4680
Hitron CODA-4682
Hitron CODA-4689
Hitron CODA-47
Hitron CODA-4702
Hitron CODA-4780
Hitron CODA-4782
Hitron CODA-4789
Linksys CG6350
Linksys CG7500
Linksys CM3016
Linksys CM3024


Is a modem missing on this list? Please leave a comment below.

Intel Puma 6 Modem List Chipset Defects Reaction will no longer recommend any Intel Puma 6 cable modem on this site. However, to show complete approved modem lists for each internet service provider, modems listed for each company may contain bad modems too. will display warnings for potentially defective Puma chipset modems.

While one of the Do Not Buy modems may work fine for your use, using a device known to have a serious issue involves risk. The cable modem may work properly for a few weeks and then problems could occur later. Skip any potential problems now and go with another approved cable modem for your internet service provider (without Intel inside).

Approved Modems Helpful Resources

25 thoughts on “Intel Puma 6 Modem List Chipset Defects”

    1. Thanks exboxnick for the info.

      Those model numbers were actually intentionally left off the Do Not Buy list because none of the ISPs have approved those modems you referenced. Therefore, those modems do not place on the list.

      Yes, they are bad Intel Puma modems, but no one should be purchasing these modems since they are not approved by any internet provider anyway. Listing every bad modem would make for an even longer list. Obviously this site is only concerned with approved modems.

      Thank you for the input, exboxnick. At least this reply will have the modem models you mentioned for future reference. If you see anything else that should be addressed, please reply.

      1. Modem Gurus said, “Those model numbers were actually intentionally left off the Do Not Buy list because none of the ISPs have approved those modems you referenced. Therefore, those modems do not place on the list.”

        Cox DOES support the TG2472 (Puma6 chipset) in some locations.
        According to Cox you have to be sure of its provenance (that it isn’t stolen) before they will initialize it…but they DO SUPPORT IT and it is on their supported cable-modems page for the area I’m in.

        The TG2472 is not listed in your “approved” list, but is included in the list above.

        1. Thanks John for the reply, but the TG2472 is on the Cox approved modems list and is marked as a Do Not Buy device. Maybe you just missed seeing it on the list (or maybe you were looking at a different ISP approved modem list).

          Cox Approved Modems

        2. To warn others as well…Cox just installed the Arris TM3402 at my 94 yr. old mom’s house — she lives alone. I’m LIVID at being forced to relinquish the stability and reliability of a hard-wired analog line to conform to the FCC’s directive of everything digital! Put every egg in one basket and just watch when it fails! And, less than 24 hours later it already has. That’s “progress” for ya? To me that’s substandard and in our case a serious safety issue.

          So now we have a piece of garbage to boot as a modem that accommodates it (not our choice either). It was installed on Sunday afternoon…on Monday morning it had intermittent static in the lines and was found to have “gone down” already without explanation from Cox. “We don’t know why…but it’s back up now.” Gee…thanks! So…I’m back out there for yet ANOTHER appointment with Cox to try to address this unreliable, unwanted bit of crap!

          Seems like every time government sticks their noses into things they choose to manipulate “for our own good,” we all get screwed. Funny how that is…

          1. …if I need to use the internet when I’m there with my laptop, I use my phone as a hotspot.

      2. Thank you for the reply! You’re right, they do not appear here

        Those modems I listed are specifically sent out by Comcast Business and we encounter these devices all the time. Comcast has been replacing older Ubee model modems and Netgear CG3000DCR modems with these Cisco/Technicolor devices to offer their gateway and services too.

        And I apologize. This list you have above seems to be for consumer devices, which is fine. I didn’t catch that at first and for anyone who may have issues with their business, maybe, can refer to the URL.

    1. Thank you, exboxnick.

      After much research, you are correct. The NETGEAR CBR40 Orbi Cable Router is indeed an Intel Puma chipset. For those curious to see what an Intel Puma chipset looks like, you may view it on the following link. Notice the DHCE2604 number and the “i” logo, which is an indicator of an Intel Puma chipset.

      NETGEAR CBR40 Intel Puma Chipset Image

      Word of caution on the linked paged you posted, exboxnick. Since it is a wiki site, anybody can edit those pages, so the information may not be correct for every device.

      Thanks, exboxnick, for posting a correction to the Puma chipset defect list.

    1. No, Javed, avoid the ARRIS SBG10 as it contains an Intel Puma chipset. The best modem to buy will depend on the ISP you have. Please see your ISP page on this site to determine the best modem for your use.

  1. Charter/Spectrum/Time Warner Western NY.
    To the best of my knowledge, all approved modems use the Puma 6 chipset, including the company supplied ones.
    They are in no hurry to test any modems for the 400mbs to gig tier because they supply their own modems.
    So what is a safe modem to purchase?

    1. Hello EvilWizardGlick,

      Not all approved modems for Charter contain the Intel Puma 6 chipset. You may view the Charter approved modem list and see the devices that do not contain the bad chipsets (pick any modem that does not have a black diamond ♦ next to the modem number).

      Even though Charter is the second largest cable internet provider, it takes them months, if not years, to approve modems. It is insane how slow they are at certifying modems. Yes, it may be several more months before Charter approves any DOCSIS 3.1 modems for 1 Gbps speeds.

      Charter has a Minimally Qualified Modems list, but the company actually states they are not recommended “because they haven’t been tested to confirm their ability to deliver your purchased internet service speed.” The full list is below. The NETGEAR CM1000 is a DOCSIS 3.1 modem, but as Charter has stated, your internet speed will be an issue.

      ARRIS SB8200
      ARRIS SB6183v2
      ARRIS SBG10
      ARRIS SBG6950
      ARRIS SBG6950 AC2
      ARRIS SBG7400
      ARRIS SBG7400 AC2
      ARRIS SBG7600
      ARRIS SBG8300
      Linksys CG7500
      Linksys CM3016
      Motorola MB8600
      Motorola MG7700
      NETGEAR C3000v2
      NETGEAR C3700v2
      NETGEAR C6220
      NETGEAR C6300-100NAS
      NETGEAR C6300v2
      NETGEAR C6300 D0
      NETGEAR C7000
      NETGEAR C7000v2
      NETGEAR C7500
      NETGEAR C7500 D0
      NETGEAR C7800
      NETGEAR Cable Orbi CBR40 or CBK40
      NETGEAR N450
      NETGEAR N450-100NAS
      NETGEAR N450 CG3000Dv2
      NETGEAR CM1000
      NETGEAR CM1000v2
      NETGEAR CM1100
      NETGEAR CM1200 V1
      NETGEAR CM1200-100NAS
      TP-Link CR1900
      TP-Link TC7650
      Zoom 5370

  2. The Arris CM3200/3200ashould be on this list as was a confirmed puma chipset issue previously by several large cable providers.A little research online confirms this.

    1. Thanks cablesatguy.

      The ARRIS CM3200 has been added to the list. Currently only Armstrong has approved that modem. Nice catch cablesatguy!

  3. Didn’t Intel release firmware that resolves the Puma chipset? Technically the bad modems should be fine, right?

    I am currently searching for a new modem as I am having to use spectrum due to cost efficient. I am coming from Google Fiber. $144 to $71

    1. Yes, some firmware updates have been released, however not every issue has been resolved. Plus, any future firmware updates may reverse any fixes, or even make the issues worse.

      It is just best to stay away from anything with an Intel Puma chipset for a hassle-free experience today and for the future.

      Thanks, bradleyp.

  4. My Cable company that i will leave unnamed until i am fully enraged with, has basically provided me a Modem that the united states website for the company no longer provide. It is the Hitron-3582 and it doesn’t appear to be on the actual lawsuit against Intel. Does anybody have any recommendations ? I am trying to get these *edit* to actually get current equipment from Hitron, instead of some i swear to god imported from over the border and trying to avoid getting sued over. If the cable company specifically already knows of this and avoiding it, they are just as liable and i’m wanting my high speed internet to be high speed for real if you get what i mean. any help or advice appreciated

    1. What is the name of your Internet provider?

      You really want to avoid anything from Hitron as most of their devices use Intel Puma chipsets. You should try a different brand if possible.

    1. Thanks, but the Technicolor 4350 is a modem geared for Canadian internet service providers. only deals with the USA region at this time. Thank you for the information.

  5. Greetings,
    I’m so happy to have stumbled upon your web site. I cant even tell you how I got hear as I’ve been searching for answers for 3 hours tonight.

    I live in a canyon along the Pacific coastline in So Cal and am serviced by COX. I have no other choices or options. I was mandated by COX to upgrade my modem as they’re changing all telephone systems from analog/ copper wire to VOIP. As such I was forced to accept their modem, an ARRIS TM3402A. At the time I decided to upgrade and modernize my wifi system and chose the
    Linksys VELOP mesh 3 node system.
    The VELOP system is easy and connected seamlessly with the ARRIS TM3402A modem. Everything was hunky-dory for 2 weeks……..then it happened. Without changing a thing the ARRIS Modem simply dumped my VELOP wifi and refused to communicate or play nice.

    I’ve contacted COX on 4 different occasions over the past two months. During that time I’ve spent 9hrs on the phone and’ve been visited by 3 different Techs. Like Bill Murray in Ground Hogs Day, the same thing happens each and every time. Suffice it to say COX either doesn’t know how to fix their issue, or refuses to be honest and admit they don’t know why it arbitrarily disconnects the wifi anywhere from 20 mins to 48 hours after complete reboot of both systems.

    Tonight in my quest to ‘find a cure’ I found your site. On your site I discovered the COX Modem (ARRIS TM3402A) is on your Intel PUMA chip list with a big warning “Do Not Buy”.
    Can you tell me if my modems ‘self disconnecting’ issues could be in direct correlation to the Bad PUMA chip set?
    Have I stumbled into discovering the crux’s of my 60 day frustration?
    Are you the one web site of insightful and experienced tech types who are actually saving us common folk?…..

    1. First, LA-Gaffer, sorry for all the frustration with your device. It is really disappointing when something just does not work.

      Second, yes, using an Intel Puma device will cause issues with connectivity. You should certainly be purchasing a new non-Puma modem to maintain a solid connection to the internet. You can find Cox approved modems here (Intel Puma chipset modems are clearly marked, so you know which modems to avoid). Good luck, LA-Gaffer.

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