My internet and phone access have generally been rock solid for the past few years. However, since being upgraded freom 25mbpbs to 105mbps service earlier this week, I've noticed continually degrading service - the first night it was fine, but since the night before last I lose internet and phone service several times an hour. Since this morning my modem has been rebooting constantly as well. The first page of logs in the modem (TC8305C) looks like this:
| Fri Apr 04 10:23:30 2014 | Warning (5) | MDD message timeout;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:20:04 2014 | Notice (6) | TLV-11 - unrecognized OID;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:19:54 2014 | Notice (6) | Honoring MDD; IP provisioning mode = IPv6 |
| Fri Apr 04 10:19:44 2014 | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; |
| Fri Apr 04 10:19:35 2014 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:19:35 2014 | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:19:28 2014 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:19:28 2014 | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:19:05 2014 | Warning (5) | MDD message timeout;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:19:02 2014 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:18:45 2014 | Warning (5) | MDD message timeout;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:18:35 2014 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:18:23 2014 | Warning (5) | MDD message timeout;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:18:09 2014 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:14:16 2014 | Warning (5) | MDD message timeout;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:13:48 2014 | Notice (6) | TLV-11 - unrecognized OID;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:13:32 2014 | Notice (6) | Honoring MDD; IP provisioning mode = IPv6 |
| Fri Apr 04 10:13:20 2014 | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; |
| Fri Apr 04 10:13:10 2014 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:13:10 2014 | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:13:08 2014 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:13:08 2014 | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:13:02 2014 | Warning (5) | MDD message timeout;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:13:02 2014 | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
| Fri Apr 04 10:13:01 2014 | Warning (5) | MDD message timeout;CM-MAC=88:f7:c7:31:4f:8d;CMTS-MAC=00:01:5c:31:4b:c4;CM-QOS=1.1;CM-VER=3.0; |
And the signal strength looks like this:
Downstream Channel Bonding ValueIndexLock StatusFrequencySNRPowerModulation
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked |
| 597 MHz | 573 MHz | 579 MHz | 585 MHz | 591 MHz | 603 MHz | 609 MHz | 615 MHz |
| 28.4 dB | 32.4 dB | 31.9 dB | 31.1 dB | 30.7 dB | 0.0 dB | 0.0 dB | 0.0 dB |
| -18.2 dBmV | -13.9 dBmV | -14.4 dBmV | -15.2 dBmV | -15.8 dBmV | 3.3 dBmV | -21.6 dBmV | -21.5 dBmV |
| 256QAM | 256QAM | 256QAM | 256QAM | 256QAM | unknown | unknown | unknown |
Upstream Channel Bonding ValueIndexLock StatusFrequencySymbol RatePower LevelModulationChannel ID
| 1 | 2 | 3 | 4 |
| Locked | Locked | Locked | Not locked |
| 21 MHz | 34 MHz | 27 MHz | |
| 5120 Ksym/sec | 5120 Ksym/sec | 5120 Ksym/sec | |
| 44.3 dBmV | 44.3 dBmV | 44.3 dBmV | |
| ATDMA | ATDMA | ATDMA | |
| 12 | 10 | 11 |
Thoughts? Is this some wider service issue or is my signal quality not up to a reliable connection at 105mbps? It tests great... when it works.