Power Levels high side
Hi good people of the forum! I had a nightmare experience with VM last year, but got it installed again this year and it seems to be all solved. They replaced an isolator and removed what they...
Forum Discussion
3.0 Upstream channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
| 0 | 49600000 | 39.8 | 5120 | QAM 64 | 1 |
| 1 | 43100000 | 39.5 | 5120 | QAM 64 | 2 |
| 2 | 36600000 | 39.3 | 5120 | QAM 64 | 3 |
| 3 | 30100000 | 39 | 5120 | QAM 64 | 4 |
| 4 | 23600000 | 38.5 | 5120 | QAM 64 | 5 |
3.0 Upstream channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
| 0 | ATDMA | 0 | 0 | 0 | 0 |
| 1 | ATDMA | 0 | 0 | 0 | 0 |
| 2 | ATDMA | 0 | 0 | 0 | 0 |
| 3 | ATDMA | 0 | 0 | 0 | 0 |
| 4 | ATDMA | 0 | 0 | 0 | 0 |
3.1 Upstream channels
Channel Channel Width (MHz) Power (dBmV) FFT Type Modulation
| 6 | 11 | 35.2 | 2K | QAM 256 |
3.1 Upstream channels
Channel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts
| 6 | OFDMA | 220 | 74000000 | 0 | 0 |
Network Log
Time Priority Description
| 03-03-2024 19:16:59 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 19:11:57 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 19:07:31 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 19:02:28 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:59:03 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:53:59 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:49:51 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:44:48 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:38:49 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:33:46 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:33:12 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:28:09 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:28:03 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:23:00 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:22:08 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:17:05 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:13:38 | notice | REGISTRATION COMPLETE - Waiting for Operational status |
| 03-03-2024 18:13:34 | notice | US profile assignment change. US Chan ID: 6; Previous Profile: 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:13:29 | notice | DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:13:25 | notice | TLV-11 - unrecognized OID;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:13:23 | warning | DHCP WARNING - Non-critical field invalid in response ;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:13:21 | notice | Honoring MDD; IP provisioning mode = IPv4 |
| 03-03-2024 18:13:12 | critical | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 18:13:11 | critical | Cable Modem Reboot because of - HW or Power-On Reset |
| 03-03-2024 17:56:05 | critical | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 03-03-2024 17:56:04 | critical | Cable Modem Reboot because of - Erouter Mode Change |
| 02-03-2024 14:24:52 | critical | Cable Modem Reboot because of - Reboot Timezone Change |
| 02-03-2024 14:24:52 | critical | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 02-03-2024 14:21:47 | critical | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
| 02-03-2024 14:21:46 | critical | Cable Modem Reboot because of - pin-reset |
Although some of the downstream are indeed out of spec unless it is impacting your service I doubt you need an attenuator. The log message are fine and the Pre errors are normal. Wait for a VM staff member to give their view,