I have the same issue for months now. Still struggling with dropping off from online meeting, disconnection from VPN, etc. If you look at the log, you should also see critical T3 and T4 timeout and the timestamp should match the the ping request timeout.
| Wed Jun 16 14:57:40 2021 |
Critical (3) |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:70:e5:0b;CMTS-MAC=6c:41:0e:fc:4d:d5;CM-QOS=1.1;CM-VER=3.0; |
| Wed Jun 16 14:57:40 2021 |
Critical (3) |
Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:70:e5:0b;CMTS-MAC=6c:41:0e:fc:4d:d5;CM-QOS=1.1;CM-VER=3.0; |
| Wed Jun 16 15:00:22 2021 |
Critical (3) |
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:70:e5:0b;CMTS-MAC=6c:41:0e:fc:4d:d5;CM-QOS=1.1;CM-VER=3.0; |
Cox sent technicians multiple time, all they do is to make sure the wire connection is solid, measured the signal strength. I bought two different modems (Netgrea and Motorola) and tried Cox rental modem, nothing works.
A few times, they told me to talk to modem vendors. I did, and they point out the T3/T4 timeout are due to provider packet lost, not the modem's problem. I agree with them because the odds for three different modems from three different companies to fail is simply too small.
Please let me know if and how they were able to resolve your issue. Thanks!
