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My daily internet connection loss
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08-05-2020
01:40 PM
My daily internet connection loss
I have been having weekday internet outages around noon almost every weekday. This is not great now that I have to work from home. I have contacted Comcast support and everytime they reset the modem and everyday the internet service comes back...until next time. The tech support always says the levels look good and thats all they can "see" and the problem is my equipment. I have my doubts since all I need to do to correct the issue myself is unplug the coax from the SB6183 modem and plug it back in and presto, internet is working again. Here are the details from my modem. Any ideas on a real solution will be greatly appreciated!
| Mon Aug 03 20:52:56 2020 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Mon Aug 03 20:52:56 2020 | Critical (3) | Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Mon Aug 03 20:52:56 2020 | Critical (3) | 16 consecutive T3 timeouts while trying to range on upstream channel 0;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Tue Aug 04 12:43:57 2020 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Tue Aug 04 15:15:54 2020 | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Tue Aug 04 15:16:01 2020 | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Tue Aug 04 15:18:16 2020 | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Tue Aug 04 15:18:17 2020 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Tue Aug 04 15:18:28 2020 | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Tue Aug 04 15:18:28 2020 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Tue Aug 04 15:18:53 2020 | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Tue Aug 04 15:18:53 2020 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Tue Aug 04 15:19:38 2020 | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Tue Aug 04 15:19:38 2020 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Tue Aug 04 15:19:41 2020 | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; |
| Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; |
| Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; |
| Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; |
| Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; |
| Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; |
| Wed Aug 05 09:09:53 2020 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Wed Aug 05 09:14:13 2020 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
| Time Not Established | Notice (6) | Ds Lock Failed - Reinitialize MAC... |
| Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; |
| Time Not Established | Notice (6) | Ds Lock Failed - Reinitialize MAC... |
| Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; |
| Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; |
| Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; |
| Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; |
| Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; |
| Time Not Established | Notice (6) | Honoring MDD; IP provisioning mode = IPv6 |
| Wed Aug 05 10:07:44 2020 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:96:84:e5:9e:a9;CMTS-MAC=00:01:5c:6e:2c:56;CM-QOS=1.1;CM-VER=3.0; |
Startup Procedure
| Procedure | Status | Comment |
| Acquire Downstream Channel | Locked | |
| Connectivity State | OK | Operational |
| Boot State | OK | Operational |
| Configuration File | OK | |
| Security | Enabled | BPI+ |
| DOCSIS Network Access Enabled | Allowed |
| Channel | Lock Status | Modulation | Channel ID | Frequency | Power | SNR | Corrected | Uncorrectables |
| 1 | Locked | QAM256 | 38 | 423000000 Hz | 2.2 dBmV | 41.1 dB | 3755 | 1626 |
| 2 | Locked | QAM256 | 39 | 429000000 Hz | 2.9 dBmV | 41.4 dB | 50 | 182 |
| 3 | Locked | QAM256 | 40 | 435000000 Hz | 2.1 dBmV | 41.0 dB | 18 | 101 |
| 4 | Locked | QAM256 | 41 | 441000000 Hz | 2.5 dBmV | 41.0 dB | 46 | 213 |
| 5 | Locked | QAM256 | 1 | 447000000 Hz | 2.5 dBmV | 41.0 dB | 10 | 71 |
| 6 | Locked | QAM256 | 2 | 453000000 Hz | 2.1 dBmV | 40.7 dB | 9 | 64 |
| 7 | Locked | QAM256 | 3 | 459000000 Hz | 2.4 dBmV | 40.9 dB | 22 | 111 |
| 8 | Locked | QAM256 | 4 | 465000000 Hz | 2.0 dBmV | 40.6 dB | 46 | 113 |
| 9 | Locked | QAM256 | 5 | 471000000 Hz | 2.5 dBmV | 40.8 dB | 57 | 210 |
| 10 | Locked | QAM256 | 6 | 477000000 Hz | 1.9 dBmV | 40.5 dB | 18 | 88 |
| 11 | Locked | QAM256 | 7 | 483000000 Hz | 1.7 dBmV | 40.2 dB | 41 | 91 |
| 12 | Locked | QAM256 | 8 | 489000000 Hz | 2.2 dBmV | 40.5 dB | 45 | 19 |
| 13 | Locked | QAM256 | 9 | 495000000 Hz | 1.6 dBmV | 40.3 dB | 29 | 102 |
| 14 | Locked | QAM256 | 10 | 507000000 Hz | 1.9 dBmV | 39.2 dB | 13 | 96 |
| 15 | Locked | QAM256 | 11 | 513000000 Hz | 1.6 dBmV | 40.3 dB | 15 | 58 |
| 16 | Locked | QAM256 | 12 | 519000000 Hz | 1.8 dBmV | 40.3 dB | 24 | 82 |
| Channel | Lock Status | US Channel Type | Channel ID | Symbol Rate | Frequency | Power |
| 1 | Locked | ATDMA | 4 | 5120 Ksym/sec | 16400000 Hz | 41.5 dBmV |
| 2 | Locked | ATDMA | 1 | 5120 Ksym/sec | 35600000 Hz | 41.0 dBmV |
| 3 | Locked | ATDMA | 2 | 5120 Ksym/sec | 29200000 Hz | 41.8 dBmV |
| 4 | Locked | ATDMA | 3 | 5120 Ksym/sec | 22800000 Hz | 41.5 dBmV |
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