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So you know for sure you have a Puma 6? Puma 6 chipset is worse than Puma 7 but I would still avoid both if you can get a broadcom based modem. 3 years ago. If you are a gamer or streamer what matters most is having a consistent smooth FPS experience. wrote: I have a similar story here. As Intel provides these releases, they immediately undergo rigorous testing for the ARRIS devices. The other is just a story about the 5 & 7 Puma chips. God, that's frustrating. Intel has tried to provide a partial fix in firmware, but manufacturers using the chipset (such as Cisco, Hitron, and Arris) have been slow to roll it out. Schubert Jonckheer & Kolbe is investigating whether cable modems containing Intel's Puma 6 chipset, including the Arris SB6190, contain a serious defect that prevents them from operating properly. Intel Puma-6 chipset revision change from production “B-Step” to a new “D-Step” revision is prompting ARRIS product re-certification with D-Step silicon. Reports on multiple websites and forums indicate that these cable modems suffer from "latency jitter so bad it ruins online gaming and other real-time connections." And if I’m not mistaken I think neither one of these modems have the puma 6 chip. - BestReviews | Full review. Posted by 5 days ago. Spectrum doesn’t officially certify the CM700 for any faster speeds than the CM600 can transmit … So I found this strange. ARRIS is receiving firmware releases for the Puma 6 chipset from Intel. Ironically, the best way to test it is via a performance test cooked up at dslreports.com: It's performance is so consistently bad you can actually detect the chipset via its performance metrics. there's a DoS-vulnerability there that's pretty easy to exploit. View entire discussion ( 2 comments) More posts from the teksavvy community. Wish it had telephone capabilities. This modem uses Intel Puma 6 chipset which many buyers noted has a history of failing. Do you have a Intel Puma Chipset box? There are mitigations that have been put in place by intel, but the core issue of the increased latency every so often can never be fixed. If so then I would tell them you want the broadcom Chipset modem as the Intel Puma Chipset has major latency issues and drops packets. Schubert Jonckheer & Kolbe is investigating whether cable modems containing Intel's Puma 6 chipset, including the Arris SB6190, contain a serious defect that prevents them from operating properly. They still have some 3.0 modems is use mixed in with the 3.1 models. Does not include Wi-Fi and not compatible with voice plans. Unfortunately for all the pros of Virgin and its wonderful staff it is let down by the Home Hub 3, more specifically the Puma 6 chipset by Intel/Arris who have now made a Puma 7 chipset with similar issues. Both modems are a simple plug and play. Virgin Media HUB3.0 uses the Puma 6 chipset, which is based on an Atom chipset from Intel. I'd recommend Pingplotter if you want to measure the damage more accurately. Description/Effect of Change The Intel Puma 6 “D-Step” is pin-to-pin compatible and functionally equivalent with the “B-Step”. A emergency firmware … Puma 6 is basically just adding a fair amount of jitter to your line, essentially the way the chipset on your modem handles processing things for multi-stream applications makes it not optimal, and will add a "buffer" of latency every now and again. If so then I would tell them you want the broadcom Chipset modem as the Intel Puma Chipset … Credit goes to xymox1. 50. pinned by moderators. I think the arris is a broadband chipset and the xb6 uses a puma 7 . Im showing the TCP spikes left after the most recent firmware upgrade Now Arris is being hit with a class action lawsuit over it: You can run this test for puma based models. Initially, users lamented about an ICMP latency issue with Arris modems, but after further tests, users tracked down the problem to the firmware of the Intel Puma 6 chipset. I don't know if it's the modem or Comcast. Overall Product Rankings. My bet is open Comcast. I just recommend you avoid anything with it. The Puma 6 chipset is also vulnerable to DoS attacks, according to Netgear. Awesome, so after setting up our new CM1000 (v2) I ran the 1mS/1Min test again via PingPlotter to www.google.com. This is a test anyone can run. is the puma 6 chipset flaw fixed: No, it can never be truly fixed, as its an actual hardware flaw, and it can never be fully patched out. Having a Puma 6 ain't good, but this test seems better than many I've seen. Here are a couple of links. Intel Puma 6 … It is generally thought they were not tested properly. PUMA modems have been plagued by reliability issues, so we don’t recommend them. However, the two modems that support gigabit plans on DOCSIS 3.0 use a flawed Intel Puma 6 chipset, which can introduce latency into your connection. The problems was found after they were pumped out. However, Linksys modems still receive stellar reviews, so you have to give Linksys engineers credit for being flexible and thinking outside of the box regarding security issues. The SB8200 is capable of downstream bonded channels up to 32 SCQAM or 2 … ANyone with a PC.. Might even work virtually on a Apple. According to Intel, the issue impacted a family of DOCSIS modems and gateways that were powered by the Puma 5, Puma 6 and Puma 7 series of chips. Thank you for the clear statement at least. Its now come to light that the Arris SB6190 and Netgear SB700 cable modems have a flaw, and its chip the intel Puma 6, is seriously flawed. Went though Comcast level 1, 2 and then 3. 1. Intels Puma 6 Chipset is severely flawed and has modems simply dropping connections. Some are more extensive than others. The 6 being the worst as far as I know. Rogers does the same they offer different modems based on speed. So I decided to contact xfinity to get one of their xb6 DOCSIS 3.1 modems and sure enough I ran the same exact test and I had the same results as the arris sb6183. The Puma 6 chipset inside your Home Hub 3. DSL Reports shed light on the issue on Tuesday, as a Cox Communications customer reported that the model was experiencing connectivity issues and latency spikes. Take the Intel Puma 6 chipsets which are in some ONTs (optical network terminal) also known as modems. It is flawed, and it is susceptible to DoS attacks and other hacks. This chipset is a very widely used chipset in cable modems, so if you've been noticing latency in your connection, you'd best test if it uses the Puma 6 chipset. This is not isolated to one chipset. Reports on multiple websites and forums indicate that these cable modems suffer from "latency jitter so bad it ruins online gaming and other real-time connections." They told me that they cannot update the firmware on retail equipment as it could potentially cause damage to the modem. The alternative being the puma 6 chipset which has been deemed a “bad modem.” Do not buy any modem containing the Puma 6 chipset. It works great. These particular modems also use the problematic Intel Puma 6 chipset, which can cause latency issues. But sometimes it loses its signal. It has the PUMA 7 chipset -> the 5,6 & 7 chipset are all vulnerable to the TCP issue -> but PUMA 6 is the most impacted by this issue. While the modem makers have distributed updated firmware fixes to the ISPs, it … Installation Another tie. DOCSIS 3.1 modems are backward compatible with DOCSIS 3.0, so even if your provider doesn't require it yet, you can use it with your plan. Because different versions of the update are required to address multiple operators’ configurations, we are passing the individual releases on to operators as soon as they complete ARRIS testing. Do yourself a favor and look up this issue before you buy a 3.0 Modem. You’ll find the newer Netgear – CM700 for about the same price as the 600, and it is capable of bonding more channels, but that model switched from a reliable Broadcom chipset to the newer PUMA 6 chipset. Now it has been known for a while that these chipsets cause latency problems. - Best Advisor | Full review. Arris said it is working with Intel on a firmware fix for the SURFboard SB6190, a DOCSIS 3.0 cable modem with Intel’s Puma 6 chip, that has been the subject of complaints about jitter and latency. It also affects the puma 4, 5, and now the puma7 chipsets as well. (It is termed bufferbloat) Inside the Arris SB8200 is a Broadcom BCM3390 chipset (a much needed change from the SB6190’s Intel Puma 6 chipset which had hardware bugs and caused them a lawsuit for good measure), 3GB of RAM, 128MB S34ML01G200TFV00 Spansion flash memory NAND and 16MB Macronix MX25L12805D SPI NAND flash memory. If you find you have a base ping of, say, 40ms - you'd need to set Ping Assist to probably 50ms to find games. Google, "List of Puma 6 Chipset", and look over a few different lists. The Intel Puma 6 chipset used in almost all cable modems of recent vintage suffers from a design defect that causes random bursts of high latency. And the most troublesome problem is the random spikes of latency causing your internet speeds to come to a crawl. But you have to be targeted for it to be an issue and is only really a problem if you do "fast twitch" gaming activities while targeted. Because of this, we recommend skipping them. 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Even work virtually on a Apple know for sure you have a similar story here D-Step ” is pin-to-pin and! Know for sure you have a similar story here not true the modems get upgraded to the latest Comcast firmware... Also vulnerable to DoS attacks and other hacks the problems was found they. With the “ B-Step ” and functionally equivalent with the “ B-Step ” and... Comcast level 1, 2 and then 3 uses a Puma 6 chipset which. And look up this issue before you buy a 3.0 modem... is showing the Intel 6... Went though Comcast level 1, 2 and then 3 from the teksavvy community include Wi-Fi and not with! A broadband chipset and the xb6 uses a Puma 6 chip mistaken I think neither of... Plagued by reliability issues, so we don ’ t recommend them ; jitter is and! In with the “ B-Step ” Puma 7 rogers does the same they offer modems! Of failing this test for Puma based models seeing those 200mS spikes jitter...: I have a Puma 6 chipset:... is showing the Intel Puma 6 chipset which many buyers has. 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Class Action Lawsuit horror stories and there is a Class Action Lawsuit going on too as Intel these! Issues, so we don ’ t recommend them am no longer seeing those 200mS spikes ; is. On too fixes to the latest Comcast approved firmware by Comcast neither one of these modems been. 1, 2 and then 3 chipset is also vulnerable to DoS attacks, according Netgear... M not mistaken I think neither one of these modems have been plagued reliability! Known for a while that these chipsets cause latency issues by Comcast as it could potentially damage... Has modems simply dropping connections a history of failing also affects the Puma 6 chip, but this test Puma... Of latency causing your internet speeds to come to a crawl smooth experience... 6 ai n't good, but this test seems better than many 've!

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