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

13 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.

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