Modem: NETGEAR CM1200
Wireless Router: TP-Link Deco M5
Started two days ago. Our network suddenly went down.
Comcast technician came yesterday to inspect the line, said it was all good and that it was probably my modem. Spent an hour+ with Netgear trying to diagnose my issues, hardwiring back into the modem with a single computer brought the connect back online.
Set my network back up with wireless router. Woke up this morning to the network back down.
Checked the modem logs and found this:
- Critical (3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;"
- Critcal (3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;"
- Warning (5) "Lost MDD Timeout;"
Screenshots from modem logs here: https://imgur.com/a/VLyp2Ct