This has been happening for about a week. We have always had slowdowns that bring the internet to a crawl but never had slowdowns like this. We bought a new modem but are still having the same issue.
Here are the logs from the modem. Can someone help? Comcast just keeps coming out and trying to give us a new subpar gateway device and upgrading our service. After the last tech came, the same issue happened. Lots of T3 errors. Not sure if everything is in spec. There is an amplifer in the garage that leads to a splitter where we split the cable box and the modem connections.
The upstream power is too high, and it may be intermittently fluctuating even higher to out of spec levels. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels. Is that amplifier in the garage powered on ? Is it the correct type with an active return ?
Are there aren't any unneeded splitters that can be eliminated ?
Perhaps it would be best to get the techs re-involved until it is fixed properly. Good luck !
The amplifier is a Commscope amplifier installed by Comcast. According to the green light on the power adapter that has a coax cable running to the amplifer, it's receiving power. To our knowledge, there's only one splitter coming from the amplifier that splits the cable box and the modem. I'm not sure if there are any other splitters in some sort of box outside. We have a tech coming out tomorrow to check things out. Apparently if you keep having techs come out, Comcast will send out more skilled techs to come fix the problem. Hopefully it's fixed tomorrow.