Need Help ASAP With Sync Timing Issue ...
I've been experiencing intermittent loss of broadband signal for a few months now. I've put up with it for long enough. The following BQM graphs are from the last 5 days. But I have a couple of months of graphs showing exactly the same thing. My Network Log shows quite clearly that this is a SYNC Timing Synchronization failure - Loss of Sync
Rebooting the system doesn't make any difference. I've checked to make sure all my connections are tightened. I'd like an engineer visit to address the ongoing issues asap. Thanks.
.......
Downstream bonded channels
Channel | Frequency (Hz) | Power (dBmV) | SNR (dB) | Modulation | Channel ID |
1 | 387000000 | 1.2 | 35 | 256 qam | 32 |
2 | 139000000 | 2.7 | 35 | 256 qam | 1 |
3 | 147000000 | 2.9 | 35 | 256 qam | 2 |
4 | 155000000 | 2.9 | 35 | 256 qam | 3 |
5 | 163000000 | 2.7 | 35 | 256 qam | 4 |
6 | 171000000 | 2.7 | 35 | 256 qam | 5 |
7 | 179000000 | 2.4 | 35 | 256 qam | 6 |
8 | 187000000 | 2.2 | 35 | 256 qam | 7 |
9 | 195000000 | 2 | 35 | 256 qam | 8 |
10 | 203000000 | 1.7 | 35 | 256 qam | 9 |
11 | 211000000 | 1.5 | 35 | 256 qam | 10 |
12 | 219000000 | 1 | 35 | 256 qam | 11 |
13 | 227000000 | 1 | 35 | 256 qam | 12 |
14 | 235000000 | 1.2 | 35 | 256 qam | 13 |
15 | 299000000 | 2 | 35 | 256 qam | 21 |
16 | 307000000 | 2 | 35 | 256 qam | 22 |
17 | 315000000 | 2.2 | 35 | 256 qam | 23 |
18 | 323000000 | 2 | 35 | 256 qam | 24 |
19 | 339000000 | 1.9 | 35 | 256 qam | 26 |
20 | 347000000 | 1.5 | 35 | 256 qam | 27 |
21 | 355000000 | 1.5 | 35 | 256 qam | 28 |
22 | 363000000 | 2 | 35 | 256 qam | 29 |
23 | 371000000 | 1.7 | 35 | 256 qam | 30 |
24 | 379000000 | 1.4 | 35 | 256 qam | 31 |
Downstream bonded channels
Channel | Locked Status | RxMER (dB) | Pre RS Errors | Post RS Errors |
1 | Locked | 35.7 | 160341 | 373423 |
2 | Locked | 35.5 | 155601 | 469198 |
3 | Locked | 35.5 | 175170 | 478554 |
4 | Locked | 35.7 | 154009 | 470716 |
5 | Locked | 35.5 | 160718 | 463135 |
6 | Locked | 35.5 | 170242 | 471938 |
7 | Locked | 35.7 | 152556 | 461006 |
8 | Locked | 35.5 | 170819 | 460889 |
9 | Locked | 35.5 | 164720 | 458720 |
10 | Locked | 35 | 177538 | 451623 |
11 | Locked | 35 | 205178 | 450675 |
12 | Locked | 35 | 201775 | 448642 |
13 | Locked | 35 | 210429 | 454224 |
14 | Locked | 35 | 219283 | 425077 |
15 | Locked | 35 | 215540 | 402858 |
16 | Locked | 35.7 | 159671 | 423299 |
17 | Locked | 35.5 | 161059 | 427630 |
18 | Locked | 35.5 | 160822 | 414453 |
19 | Locked | 35.7 | 162887 | 399939 |
20 | Locked | 35.7 | 167893 | 407648 |
21 | Locked | 35.7 | 157770 | 413033 |
22 | Locked | 35.5 | 174583 | 375605 |
23 | Locked | 35.7 | 170645 | 372924 |
24 | Locked | 35.5 | 173927 | 381164 |
Upstream bonded channels
Channel | Frequency (Hz) | Power (dBmV) | Symbol Rate (ksps) | Modulation | Channel ID |
1 | 43100000 | 47.5 | 5120 | 64 qam | 10 |
2 | 23600000 | 47 | 5120 | 64 qam | 13 |
3 | 30100000 | 47 | 5120 | 64 qam | 12 |
4 | 36600000 | 48 | 5120 | 64 qam | 11 |
5 | 49600000 | 49 | 5120 | 64 qam | 9 |
Upstream bonded channels
Channel | Channel Type | T1 Timeouts | T2 Timeouts | T3 Timeouts | T4 Timeouts |
1 | ATDMA | 0 | 0 | 9 | 0 |
2 | ATDMA | 0 | 0 | 9 | 0 |
3 | ATDMA | 0 | 0 | 6 | 0 |
4 | ATDMA | 0 | 0 | 7 | 0 |
5 | ATDMA | 0 | 0 | 11 | 0 |
Network Log
Time | Priority | Description |
18/05/2024 13:54:16 | notice | LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 13:47:18 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 13:45:47 | critical | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 13:27:37 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 13:27:37 | critical | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 13:26:46 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 13:26:46 | critical | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 13:12:47 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 13:12:47 | critical | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 11:50:0 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 11:50:0 | critical | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 11:45:11 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 11:45:11 | critical | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 11:28:55 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 11:28:32 | critical | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 04:47:37 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 04:47:37 | critical | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 03:57:49 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 03:57:49 | critical | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/05/2024 03:08:14 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |