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I'm using an Arris SB8200. For the past week or so, the Internet cuts out for 10-15 seconds several times an hour. I've run a recurring ping and it shows it dropping on the first hop from my router. It's not a Wi-Fi issue--I'm on Ethernet--and it impacts multiple devices. I've power-cycled my cable modem, factory reset it, etc. but still have this issue.
Downstream QAM256 are between 8.1dBmV and 15.8dBmV with SNR/MER at 40.7 to 41.4 dB.Upstream SC-QAM are at 36.0 dBmV.
Downstream is a little high and upstream is a little low but nothing really worrisome. How are the logs?
Here are my logs:
03/04/2023 12:08 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:03 2436694061 5 "Dynamic Range Window violation"03/04/2023 12:03 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:03 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:03 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:03 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:03 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:03 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:02 82000400 3 "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:02 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:02 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:02 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:02 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:02 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:02 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:02 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:01 2436694061 5 "Dynamic Range Window violation"03/04/2023 12:01 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:01 2436694061 5 "Dynamic Range Window violation"03/04/2023 12:01 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:01 2436694061 5 "Dynamic Range Window violation"03/04/2023 12:01 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:01 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:01 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:01 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:01 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:01 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 12:01 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:43 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:43 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:43 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:43 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:43 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:43 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:43 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:43 82000800 3 "16 consecutive T3 timeouts while trying to range on upstream channel 8;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:43 82000600 3 "Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:43 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:39 2436694061 5 "Dynamic Range Window violation"03/04/2023 11:39 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:39 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:39 2436694061 5 "Dynamic Range Window violation"03/04/2023 11:39 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:39 82000400 3 "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:38 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:38 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:38 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:38 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:38 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"03/04/2023 11:35 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
The forum software is flagging my response as "spam". I am seeing some errors:03/04/2023 12:03 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"