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I originally had an Intel PUMA-based chip which was causing noticeable delays in loading web pages due to recognized jitter issues. This modem is based on a Broadcom chipset which doesn't suffer those issues, and I notice my web browsing has gotten smoother. For objective data, please look at jitter graphs posted online by various enthusiasts. My ISP needed a DOCSIS 3.1 modem for my 500 mbps connection (I know DOCSIS 3.0 theoretically supports 500 mbps, but it uses up too many of the available frequency channels and many ISPs don't support this in practice unless you have a 3.1 modem). As of March 2019 DOCSIS 3.1 modems are relatively expensive but I got a good deal here, making it a good value proposition. It runs warm and you should take this into account when placing it.
Verified purchase: Yes | Condition: Pre-owned
So this product is very good at everything when it works. And I'm going to stress the WHEN IT WORKS part. The reason is because for some reason there's a huge issue with Arris modems, and the problem is they are designed for high bandwidth in theory, but in reality the engineers didn't compensate for the heat that's associated with such high speed, so the modem heats up and then shuts itself off when it hits around 100c degrees, and so this is not great. Because in an age where everything's getting faster and larger, the only thing you can really do well is basic stuff, hardcore downloading, streaming, gaming, starts to become a real problem. I suggest Arris resolves this, one way would be to put in fans, another way is to attach the new airjet technology onto whatever's heating up in there.Read full review
Verified purchase: Yes | Condition: New
Very easy Modem to work with, very easy to set up, basically plug and play, you have a instruction card, just so you are aware what is what, but actually getting it set up was super easy. The modem is sleek looks great and not oversized, runs quietly. My speeds were much faster from the get go. The back end software (online) it easy and intuituive to work with should you want to delve deeper into the settings.
Verified purchase: Yes | Condition: New
It does work great using RCN the modem does get hot so I use a fan to cool it down the fan is on always on it blows air into the modem and it seems to work fine and keep it cool . I did have another modem didnt use fan and it overheated and stop working had to replace it with same so the fan makes it work better.should have builtin fan.
Verified purchase: Yes | Condition: New
Exactly same as described, arrived on time, and able to setup using my Xfinity provider my own without any difficulty in 10 min. Replaced my DOCSIS 3.0 modem to this one DOCSIS 3.1. My speed boosted from 250mbps to 450mpbs (I have 500MB plan). product was in original box and almost new. Its a good buy. Thanks.
Verified purchase: Yes | Condition: Pre-owned
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