I have been having issues with internet speeds. I am supposed to have 32 locked downstream channels. Most of the time my speed drops from 200mb to around 30mb as connections to channels 30-32 get dropped which I assume is due to a large number of uncorrected packet errors. Even if channels are not dropped, download speed drops to around 30mb when there are a high number of uncorrected packet errors. I was having this issue on my SB6190 cable modem. Switched to a CM700. Problem does not seem to be modem issue. Any suggestions to solve problem appreciated
Here are modem stats
| Procedure | Status | Comment | | Acquire Downstream Channel | 531000000 Hz | Locked | | Connectivity State | Ok | Operational | | Boot State | Ok | Operational | | Security | Enabled | BPI+ | | IP Provisioning Mode | Honor MDD | honorMdd(4) |
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| Downstream Bonded Channels (Partial Service) |
| Channel | Lock Status | Modulation | Channel ID | Frequency | Power | SNR | Correctables | UnCorrectables | | 1 | Locked | QAM 256 | 5 | 357000000 Hz | 0.2 dBmV | 36.6 dB | 0 | 0 | | 2 | Locked | QAM 256 | 6 | 363000000 Hz | 0.0 dBmV | 36.3 dB | 0 | 0 | | 3 | Locked | QAM 256 | 7 | 369000000 Hz | 0.0 dBmV | 36.6 dB | 0 | 0 | | 4 | Locked | QAM 256 | 8 | 375000000 Hz | -0.2 dBmV | 36.3 dB | 6 | 0 | | 5 | Locked | QAM 256 | 9 | 381000000 Hz | -0.7 dBmV | 35.7 dB | 0 | 0 | | 6 | Locked | QAM 256 | 10 | 387000000 Hz | -0.5 dBmV | 36.3 dB | 0 | 0 | | 7 | Locked | QAM 256 | 11 | 393000000 Hz | -0.7 dBmV | 36.3 dB | 10 | 0 | | 8 | Locked | QAM 256 | 12 | 399000000 Hz | -1.4 dBmV | 36.6 dB | 15 | 0 | | 9 | Locked | QAM 256 | 13 | 405000000 Hz | -2.5 dBmV | 35.0 dB | 0 | 0 | | 10 | Locked | QAM 256 | 14 | 411000000 Hz | -1.9 dBmV | 34.9 dB | 0 | 0 | | 11 | Locked | QAM 256 | 15 | 417000000 Hz | -2.9 dBmV | 35.0 dB | 0 | 0 | | 12 | Locked | QAM 256 | 16 | 423000000 Hz | -2.4 dBmV | 35.5 dB | 0 | 0 | | 13 | Locked | QAM 256 | 17 | 429000000 Hz | -3.7 dBmV | 34.9 dB | 0 | 0 | | 14 | Locked | QAM 256 | 18 | 435000000 Hz | -2.7 dBmV | 35.5 dB | 0 | 0 | | 15 | Locked | QAM 256 | 19 | 441000000 Hz | -3.4 dBmV | 34.9 dB | 0 | 0 | | 16 | Locked | QAM 256 | 20 | 447000000 Hz | -3.5 dBmV | 35.0 dB | 0 | 0 | | 17 | Locked | QAM 256 | 21 | 453000000 Hz | -3.7 dBmV | 34.4 dB | 15 | 0 | | 18 | Locked | QAM 256 | 22 | 459000000 Hz | -3.9 dBmV | 35.0 dB | 0 | 0 | | 19 | Locked | QAM 256 | 23 | 465000000 Hz | -4.2 dBmV | 34.4 dB | 0 | 1 | | 20 | Locked | QAM 256 | 24 | 471000000 Hz | -4.0 dBmV | 34.3 dB | 5 | 0 | | 21 | Locked | QAM 256 | 25 | 477000000 Hz | -3.9 dBmV | 34.9 dB | 0 | 0 | | 22 | Locked | QAM 256 | 26 | 483000000 Hz | -3.5 dBmV | 35.5 dB | 7 | 0 | | 23 | Locked | QAM 256 | 27 | 489000000 Hz | -3.0 dBmV | 35.0 dB | 3 | 0 | | 24 | Locked | QAM 256 | 28 | 495000000 Hz | -3.9 dBmV | 35.1 dB | 41 | 0 | | 25 | Locked | QAM 256 | 29 | 507000000 Hz | -4.5 dBmV | 35.1 dB | 484 | 8861 | | 26 | Locked | QAM 256 | 30 | 513000000 Hz | -4.0 dBmV | 35.4 dB | 929 | 6523 | | 27 | Locked | QAM 256 | 31 | 519000000 Hz | -4.5 dBmV | 34.9 dB | 190 | 3184 | | 28 | Locked | QAM 256 | 32 | 525000000 Hz | -3.7 dBmV | 32.4 dB | 1509 | 13874 | | 29 | Locked | QAM 256 | 33 | 531000000 Hz | -4.0 dBmV | 35.0 dB | 44233 | 6102 | | 30 | Locked | QAM 256 | 34 | 537000000 Hz | -5.0 dBmV | 32.3 dB | 975257 | 7790103 | | 31 | Locked | QAM 256 | 36 | 549000000 Hz | -6.2 dBmV | 32.5 dB | 134896 | 883574 | | 32 | Not Locked | N/A | N/A | 0 Hz | 0.0 dBmV | 0.0 dB | 0 | 0 |
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| Upstream Bonded Channels |
| Channel | Lock Status | US Channel Type | Channel ID | Symbol Rate | Frequency | Power | | 1 | Locked | ATDMA | 4 | 5120 Ksym/sec | 16400000 Hz | 46.3 dBmV | | 2 | Locked | ATDMA | 3 | 5120 Ksym/sec | 22800000 Hz | 46.3 dBmV | | 3 | Locked | ATDMA | 2 | 5120 Ksym/sec | 29200000 Hz | 46.3 dBmV | | 4 | Locked | ATDMA | 1 | 5120 Ksym/sec | 35600000 Hz | 46.3 dBmV | | 5 | Not Locked | N/A | Unknown | 0 Ksym/sec | 0 Hz | 0.0 dBmV | | 6 | Not Locked | N/A | Unknown | 0 Ksym/sec | 0 Hz | 0.0 dBmV | | 7 | Not Locked | N/A | Unknown | 0 Ksym/sec | 0 Hz | 0.0 dBmV | | 8 | Not Locked | N/A | Unknown | 0 Ksym/sec | 0 Hz | 0.0 dBmV |
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| Time | Priority | Description |
| Time Not Established | Critical (3) | No Ranging Response received - T3 time-out |
| Sep 08 2020 14:18:43 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Sep 08 2020 14:18:46 | Warning (5) | RCS Partial Service |
| Sep 08 2020 14:19:01 | Warning (5) | Lost MDD Timeout |
| Sep 08 2020 16:20:18 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Sep 08 2020 16:20:21 | Warning (5) | RCS Partial Service |
| Sep 08 2020 16:20:25 | Warning (5) | Lost MDD Timeout |
| Sep 08 2020 17:26:29 | Critical (3) | SYNC Timing Synchronization failure - Loss of Sync |
| Sep 08 2020 17:26:35 | Warning (5) | Lost MDD Timeout |
| Sep 08 2020 17:27:21 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out |
| Sep 08 2020 17:29:32 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Sep 08 2020 17:29:35 | Warning (5) | RCS Partial Service |
| Sep 08 2020 17:29:39 | Warning (5) | Lost MDD Timeout |
| Sep 08 2020 17:33:43 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Sep 08 2020 17:33:46 | Warning (5) | RCS Partial Service |
| Sep 08 2020 17:33:50 | Warning (5) | Lost MDD Timeout |
| Sep 08 2020 18:02:03 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Sep 08 2020 18:02:05 | Warning (5) | RCS Partial Service |
| Sep 08 2020 18:02:11 | Warning (5) | Lost MDD Timeout |
| Sep 08 2020 19:22:39 | Critical (3) | SYNC Timing Synchronization failure - Loss of Sync |
| Sep 08 2020 19:24:13 | Warning (5) | Lost MDD Timeout |
| Sep 08 2020 19:24:14 | Critical (3) | SYNC Timing Synchronization failure - Loss of Sync |
| Sep 08 2020 19:25:05 | Warning (5) | Lost MDD Timeout |
| Sep 08 2020 19:29:03 | Critical (3) | SYNC Timing Synchronization failure - Loss of Sync |
| Sep 08 2020 19:29:45 | Warning (5) | Lost MDD Timeout |
| Sep 08 2020 19:35:17 | Critical (3) | SYNC Timing Synchronization failure - Loss of Sync |
