Hi guys,
I am running into a problem with this modem I am renting off of Comcast. It is an ARRIS TG3482G or XB6. I have it configured for bridge mode with a Netgear R7500v2 connected to it. I tested the XB6 for a few weeks before adding the R7550v2 and the wifi range was inadequate. I been having an issue and cannot seam to get to the bottom of it. I am having a problem with slow speeds as well as sites coming up as unavailable. Sometimes if sites do load it will time a while for them to load. They are not snappy by no means.
Looking at the modem logs I am noticing some errors. I am going to copy and paste some of them as I have posted them somewhere else. I will be adding screenshots for you guys to look at. There is an IPV6 critical error that says IPV6 provision - 0 that concerns me. It seams to me that the modem is not properly connection to IPV6. Therefore, it is spitting out a bunch of IPV6 errors. Comcast does not know why it is doing this. I reached out to ARRIS and they said they cannot give me any information on the errors because the modem was specifically built for Comcast and they have it configured to do what they want it to do. Therefore, they do not know what an of their errors mean :D
I was reading around the internet and it sparked the idea to try pining various parts of my network. So I starting ping my router the R7500v2. It returned a response of 1ms with no packet loss. So, all is well there. Next, I started pinging the XB6. When I ping it I am getting responses of 4ms-9ms. However, what concerns me is I am getting timeouts and packet loss. I have the modem properly bridged and verified it. There is a slider box in the mode GUI to enable bridge mode. I do not understand what could be causing it to do that. I will be attaching a screenshot of it.
I have tried reaching out to Comcast. When the problem first started I was using my own modem which is a Netgear CM500. It is on the approved modem list. It is also capable of support performance internet. I noticed the same above errors and issues with it. That is what kicked all of the support calls off. Comcast repetitively tried to convince me my modem was bad. I said fine you guys send out a tech with a modem and have him hook it up. No self-install stuff. That way if it does not work it is a problem on your end. They install the XB6 and as you can see problem continues. The tech checks the signals and said everything is good.
To improve the signal even more completely disconnected everything from the main cable line. There are no splitters and nothing connected to it at all except the cable modem. I use Roku sticks to stream all my TV stations through the Xfinity Beta app. This brought my signal level to right around 0db which is the best you can get. However, some things seam suspect to me. The cable companies try to supply customers houses with about 3db to 5db of power. This allows for splitters and what not. That way they do no have to install signal boosters. Mine is at 0. The SNR also seams very low for a clean line. it is between 38db and 40db. I read somewhere that below 33db you will experience disconnects. I have seen it at times get pretty close to 33db. However, the tech did not seam concerned.
Thanks,
Rocky
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