The 3 things I see in the log are T3 and T4 time-outs and the partial service error. Pretty sure that happens when the modem drops a downstream channel. The T3's happen from noise on the upstream. I think you require a technician. Hopefully you get a Cox technician and not a contractor, as they usually aren't paid/trained/etc to handle a ingress issue.
Much thanks for the reply. I have had 3 technicians (all contractors) come out will little success. I will push for a Cox technician. Thanks again.
You may not want to bring back the new modem, even if the modem wasn't the problem. Cox is eventually going to require DOCSIS 3.1 modems for most services. They have already switched all their phone modems to D3.1. I noticed you had 8 upstream channels on the new modem. That means you are close to getting a upstream OFDM channel, which really helps with congestion.
Do you have a DOCSIS 3.1 modem recommendation?
