Dropping Connection, T3 Timeouts, Unicast Maintenance Ranging No Response
I have been having connection issues with my internet for the past month or so. I notice the internet will be working fine, then all of a sudden no web pages will load. The internet light on my routher (tp-link Archer C9) lights orange when I can't get the internet to load, indicating the Internet port is connected, but the Internet is inaccessible. I have called Xfinity several times, and they tell me that my modem needs re-provisioning, but that has not helped. I send them the error messages from my modem's (tp-link TC7650) system log, and they say that it is likely my router causing the issue. They had me replace the ethernet cable between the modem and router, and though I was sceptical that would resolve it, I did it anyways. It did not resolve the issue though. I hoping that someone can give me some advice that will help me resolve this issue. Working from home, and kids distance learning due to Covid-19, we need a stable internet connection. Thank you.
Modem Signal -
Modem System Log -