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Forum Discussion
CM2000/Orbi/Xfinity constantly dropping connection
(The Model question did not list CM2000, but I have a CM2000 and not the CM1200). It's been over a year now with the Internet disconnecting dozens of times, day and night. Xfinity says it's my eq...
12:45 happened again and then fixed itself within 2 minutes. Event log showed:
Mon Feb 22 12:45:48 2021 | (Critical (3)) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:46:52 2021 | (Notice (6)) | CM-STATUS message sent. Event Type Code: 7; Chan ID: 4; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:46:52 2021 | (Critical (3)) | No Ranging Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:46:49 2021 | (Critical (3)) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:46:48 2021 | (Critical (3)) | No Ranging Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:46:38 2021 | (Critical (3)) | 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:46:38 2021 | (Critical (3)) | Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:46:38 2021 | (Critical (3)) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Time | Priority | Description |
Mon Feb 22 12:48:00 2021 | (Notice (6)) | CM-STATUS message sent. Event Type Code: 8; Chan ID: 2 4; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:47:25 2021 | (Critical (3)) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:47:25 2021 | (Warning (5)) | Dynamic Range Window violation |
Mon Feb 22 12:47:25 2021 | (Warning (5)) | RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:47:24 2021 | (Critical (3)) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:47:23 2021 | (Notice (6)) | CM-STATUS message sent. Event Type Code: 7; Chan ID: 2 4; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:47:23 2021 | (Warning (5)) | Dynamic Range Window violation |
Mon Feb 22 12:47:23 2021 | (Warning (5)) | RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:47:23 2021 | (Warning (5)) | Dynamic Range Window violation |
Mon Feb 22 12:47:23 2021 | (Warning (5)) | RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:47:23 2021 | (Warning (5)) | Dynamic Range Window violation |
Mon Feb 22 12:47:23 2021 | (Warning (5)) | RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:47:23 2021 | (Warning (5)) | Dynamic Range Window violation |
Mon Feb 22 12:47:23 2021 | (Warning (5)) | RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:47:21 2021 | (Critical (3)) | No Ranging Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:47:13 2021 | (Critical (3)) | 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:47:13 2021 | (Critical (3)) | Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:47:13 2021 | (Critical (3)) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
Mon Feb 22 12:47:02 2021 | (Critical (3)) | No Ranging Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 13:19:40 2021 | (Critical (3)) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 13:12:18 2021 | (Notice (6)) | CM-STATUS message sent. Event Type Code: 8; Chan ID: 2 4; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 13:11:44 2021 | (Notice (6)) | CM-STATUS message sent. Event Type Code: 7; Chan ID: 4; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 13:11:28 2021 | (Critical (3)) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 13:11:26 2021 | (Critical (3)) | No Ranging Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 13:11:26 2021 | (Critical (3)) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 13:11:26 2021 | (Warning (5)) | Dynamic Range Window violation |
| Mon Feb 22 13:11:26 2021 | (Warning (5)) | RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 13:11:26 2021 | (Critical (3)) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 13:11:14 2021 | (Notice (6)) | CM-STATUS message sent. Event Type Code: 7; Chan ID: 4; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 13:11:12 2021 | (Critical (3)) | No Ranging Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 13:10:58 2021 | (Critical (3)) | 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 13:10:58 2021 | (Critical (3)) | Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 13:10:58 2021 | (Critical (3)) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 12:48:00 2021 | (Notice (6)) | CM-STATUS message sent. Event Type Code: 8; Chan ID: 2 4; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 12:47:25 2021 | (Critical (3)) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 12:47:25 2021 | (Warning (5)) | Dynamic Range Window violation |
| Mon Feb 22 12:47:25 2021 | (Warning (5)) | RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 12:47:24 2021 | (Critical (3)) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 12:47:23 2021 | (Notice (6)) | CM-STATUS message sent. Event Type Code: 7; Chan ID: 2 4; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 12:47:23 2021 | (Warning (5)) | Dynamic Range Window violation |
| Mon Feb 22 12:47:23 2021 | (Warning (5)) | RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 12:47:23 2021 | (Warning (5)) | Dynamic Range Window violation |
| Mon Feb 22 12:47:23 2021 | (Warning (5)) | RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 12:47:23 2021 | (Warning (5)) | Dynamic Range Window violation |
| Mon Feb 22 12:47:23 2021 | (Warning (5)) | RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 12:47:23 2021 | (Warning (5)) | Dynamic Range Window violation |
| Mon Feb 22 12:47:23 2021 | (Warning (5)) | RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 12:47:21 2021 | (Critical (3)) | No Ranging Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 12:47:13 2021 | (Critical (3)) | 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 12:47:13 2021 | (Critical (3)) | Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 12:47:13 2021 | (Critical (3)) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
| Mon Feb 22 12:47:02 2021 | (Critical (3)) | No Ranging Response received - T3 time-out;CM-MAC=08:36:c9:9f:5f:58;CMTS-MAC=00:01:5c:6a:ac:48;CM-QOS=1.1;CM-VER=3.1; |
And yet again another 30 second disconnect. It's just the basic 1 ring video doorbell + 2 furnaces / nest thermostats + 2 cell phones not being used at the time + couple alexa devices also not being used and a couple wifi plugs. Other than the ring video doorbell I don't think any of our devices would be causing excessive use that's a problem for the equipment we have but maybe I'm wrong?
Thank you SO MUCH for any help!
Your modem is indicating line issues. Those dynamic range window violations indicate your power levels going out of spec by a ways.