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Random connection drops

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Random connection drops

I am having connection woes. I have a built-in modem-router ARRIS SBG6782-AC and it has served me well for over 4 years. I recently moved across the street (June and since the last 4 months, I am seeing random connection drops, the device rebooting and connection dropping. It happens randomly. Sometimes, it comes back up by itself, other times I need to physically reboot the device and then it comes back up.

 

Note - I encountered this 3 times while typing this post (15 minutes) (had to type in onenote and then paste it here, lest I lose it)

 

 

 

Standard Specification Compliant DOCSIS 3.0
Hardware Version 1
Software Version D30GW-EAGLE-1.5.3.0-GA-00-NOSH
Cable Modem MAC Address d4:04:cd:e3:d2:4c
Serial Number 396785525345915301011005

 

 

Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Corrected Uncorrectables
1 Locked QAM256 13 543000000 Hz 5.3 dBmV 41.9 dB 18 0
2 Locked QAM256 9 513000000 Hz 5.6 dBmV 42.4 dB 17 0
3 Locked QAM256 10 519000000 Hz 5.3 dBmV 41.9 dB 26 0
4 Locked QAM256 11 525000000 Hz 5.3 dBmV 41.9 dB 23 0
5 Locked QAM256 12 531000000 Hz 5.4 dBmV 41.9 dB 26 0
6 Locked QAM256 14 549000000 Hz 5.3 dBmV 42.1 dB 21 0
7 Locked QAM256 15 555000000 Hz 5.0 dBmV 41.9 dB 19 0
8 Locked QAM256 16 561000000 Hz 4.7 dBmV 41.9 dB 15 0

 

 
Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 4 5120 Ksym/sec 23700000 Hz 46.8 dBmV
2 Locked ATDMA 1 5120 Ksym/sec 30100000 Hz 46.8 dBmV
3 Locked ATDMA 2 5120 Ksym/sec 36500000 Hz 46.8 dBmV
4 Locked ATDMA 3 5120 Ksym/sec 17300000 Hz 46.8 dBmV

 

Event log

Time Priority Description
Tue Feb 11 08:15:35 2020 Warning (5) Unicast DSID PSN startup error
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Time Not Established Notice (6) WiFi Interface [wl1] set to Channel 149 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl0] set to Channel 6 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Critical (3) No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Mon Feb 10 06:08:41 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Sat Feb 08 21:58:49 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Sat Feb 08 04:06:55 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Sat Feb 08 01:55:57 2020 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Sat Feb 08 01:55:57 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Sat Feb 08 01:55:38 2020 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Sat Feb 08 01:55:38 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Sat Feb 08 01:55:17 2020 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Sat Feb 08 01:55:17 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Sat Feb 08 01:54:57 2020 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Sat Feb 08 01:54:56 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Sat Feb 08 01:54:07 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Fri Feb 07 23:37:10 2020 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 23:37:10 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 23:36:49 2020 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 23:36:49 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 23:36:30 2020 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 23:36:30 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 23:36:09 2020 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 23:36:09 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 23:35:14 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 23:25:53 2020 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Fri Feb 07 22:07:15 2020 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 22:07:15 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 22:06:56 2020 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 22:06:56 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 22:06:35 2020 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 22:06:35 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 22:06:16 2020 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 22:06:16 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Fri Feb 07 22:05:24 2020 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Sun Feb 02 03:43:13 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Mon Jan 27 00:01:45 2020 Critical (3) Resetting the cable modem due to docsDevResetNow
Time Not Established Critical (3) No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Wed Jan 15 15:52:51 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Tue Jan 07 11:09:49 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.1;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=d4:04:cd:e3:d2:4c;CMTS-MAC=00:87:31:90:da:af;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Ranging Response received - T3 time-out

 

 

What should I do? It has happened only since the last 4 months.