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SYNC Timing Synchronization failure
My router keeps dropping internet due to SYNC failure.
I have read the other forums and completed the following:
1) Power down/Power up
2) Disconnect everything from network, then power cycle
3) Log into modem and router and manually rebooted
4) Used Xfinity website to force restart from your end
5) Inspected cable (no splitters, all installed by your tech 1 year ago)
I am out of DIY solutions.
| Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing |
| 19:50:20 Sat Nov 19 2022 |
Critical (3) | SYNC Timing Synchronization failure - Loss of Sync |
| Downstream Bonded Channels |  |
 |
| Channel | Lock Status | Modulation | Channel ID | Freq. (MHz) | Pwr (dBmV) | SNR (dB) | Corrected | Uncorrected |
| 1 | Locked | QAM256 | 20 | 555.0 | 4.1 | 40.3 | 0 | 0 |
| 2 | Locked | QAM256 | 17 | 537.0 | 3.6 | 40.3 | 0 | 0 |
| 3 | Locked | QAM256 | 18 | 543.0 | 3.7 | 40.1 | 0 | 0 |
| 4 | Locked | QAM256 | 19 | 549.0 | 3.9 | 40.3 | 0 | 0 |
| 5 | Locked | QAM256 | 21 | 561.0 | 4.3 | 40.3 | 0 | 0 |
| 6 | Locked | QAM256 | 22 | 567.0 | 4.4 | 40.3 | 0 | 0 |
| 7 | Locked | QAM256 | 23 | 573.0 | 4.3 | 40.2 | 0 | 0 |
| 8 | Locked | QAM256 | 24 | 579.0 | 4.2 | 40.3 | 0 | 0 |
| 9 | Locked | QAM256 | 25 | 585.0 | 4.4 | 40.1 | 0 | 0 |
| 10 | Locked | QAM256 | 26 | 591.0 | 4.3 | 40.3 | 0 | 0 |
| 11 | Locked | QAM256 | 27 | 597.0 | 4.2 | 39.9 | 0 | 0 |
| 12 | Locked | QAM256 | 28 | 603.0 | 4.1 | 40.1 | 0 | 0 |
| 13 | Locked | QAM256 | 29 | 609.0 | 4.0 | 39.9 | 0 | 0 |
| 14 | Locked | QAM256 | 30 | 615.0 | 3.7 | 39.8 | 0 | 0 |
| 15 | Locked | QAM256 | 31 | 621.0 | 3.8 | 40.0 | 0 | 0 |
| 16 | Locked | QAM256 | 32 | 627.0 | 3.8 | 40.0 | 0 | 0 |
| 17 | Locked | QAM256 | 33 | 633.0 | 4.0 | 40.3 | 0 | 0 |
| 18 | Locked | QAM256 | 34 | 639.0 | 3.1 | 39.7 | 0 | 0 |
| 19 | Locked | QAM256 | 35 | 645.0 | 4.0 | 40.2 | 0 | 0 |
| 20 | Locked | QAM256 | 36 | 651.0 | 3.9 | 40.1 | 0 | 0 |
| 21 | Locked | QAM256 | 37 | 657.0 | 3.8 | 39.9 | 0 | 0 |
| 22 | Locked | QAM256 | 38 | 663.0 | 3.8 | 40.0 | 0 | 0 |
| 23 | Locked | QAM256 | 39 | 669.0 | 3.8 | 40.0 | 0 | 0 |
| 24 | Locked | QAM256 | 40 | 675.0 | 3.7 | 39.5 | 0 | 0 |
| 25 | Locked | QAM256 | 41 | 681.0 | 3.8 | 40.0 | 0 | 0 |
| 26 | Locked | QAM256 | 42 | 687.0 | 3.7 | 39.9 | 0 | 0 |
| 27 | Locked | QAM256 | 43 | 693.0 | 3.8 | 40.0 | 0 | 0 |
| 28 | Locked | QAM256 | 44 | 699.0 | 3.7 | 39.9 | 0 | 0 |
| 29 | Locked | QAM256 | 45 | 705.0 | 3.4 | 39.8 | 0 | 0 |
| 30 | Locked | QAM256 | 46 | 711.0 | 3.3 | 39.9 | 0 | 0 |
| 31 | Locked | QAM256 | 47 | 717.0 | 3.6 | 40.1 | 0 | 0 |
| 32 | Locked | OFDM PLC | 48 | 805.0 | 3.0 | 39.5 | 186375444 | 0 |
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No Responses!