Community Forum

T3, T4 timeouts every minute

Highlighted
New Poster

T3, T4 timeouts every minute

Hello everyone, 

 

Been dealing with this probably since we've moved in this apt. & started our data plan 2yrs ago.

We're stock traders, so the problem is affecting our income directly and can be quite critical during trading days

 

Using an Arris SBG6700-AC modem, bought 2yrs ago and according to chat support modem health is fine. 

 

So far we've  

  • Removed splitter & connected modem directly outside
  • Added attenuator
  • Contacted xFinity chat support 

No luck, sadly.  Any help would be appreciated ! 

 

  Event Log , Downstream & Upstream Channels:

Time Priority Description
Sat Oct 03 12:29:16 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:28:49 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:28:16 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:28:09 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:27:36 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:27:09 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:26:36 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:26:29 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:25:56 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:25:29 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:24:56 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:24:49 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:24:16 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:23:49 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:23:17 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:23:09 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:22:37 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:22:29 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:21:57 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:21:49 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:21:17 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:21:09 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:20:37 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:20:29 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:19:57 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:19:49 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:19:17 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:19:10 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:18:37 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:18:30 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:17:57 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:17:50 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:17:17 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:17:10 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:16:37 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:16:30 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:15:57 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:15:50 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:15:17 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:15:10 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:14:37 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:14:30 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:14:13 2020Notice (6)WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INTERFERENCE
Sat Oct 03 12:13:57 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:13:50 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:13:18 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:13:10 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:12:38 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:12:30 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:11:58 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:11:50 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:11:18 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:11:10 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:10:38 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:10:30 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:09:58 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:09:50 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:09:18 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:09:11 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:08:38 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:08:31 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:07:58 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:07:51 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:07:18 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:07:11 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:06:38 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:06:31 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:05:58 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:05:51 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:05:18 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:04:51 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:04:18 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:03:31 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:02:59 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:02:11 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:01:39 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:00:51 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 12:00:19 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:59:31 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:59:05 2020Notice (6)WiFi Interface [wl0] set to Channel 6 (Side-Band Channel:N/A) - Reason:INTERFERENCE
Sat Oct 03 11:58:59 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:58:12 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:57:39 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:56:52 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:56:19 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:55:32 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:54:59 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:54:12 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:53:39 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:52:52 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:52:20 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:51:32 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:51:00 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:50:12 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:49:40 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:48:52 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:48:20 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:47:33 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:47:00 2020Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Sat Oct 03 11:46:13 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=fc:51:a4:fd:b3:a0;CMTS-MAC=6c:71:0d:5f:09:5e;CM-QOS=1.1;CM-VER=3.0;
Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA55120 Ksym/sec35600000 Hz54.0 dBmV
2LockedATDMA65120 Ksym/sec29200000 Hz54.0 dBmV
3LockedATDMA75120 Ksym/sec22800000 Hz54.0 dBmV
4LockedATDMA85120 Ksym/sec16400000 Hz54.0 dBmV

Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectedUncorrectables
1LockedQAM2561423000000 Hz4.7 dBmV40.8 dB5032612392
2LockedQAM2562429000000 Hz5.5 dBmV40.9 dB336509352
3LockedQAM2563435000000 Hz4.6 dBmV40.8 dB586378318
4LockedQAM2564441000000 Hz4.9 dBmV40.8 dB8953610900
5LockedQAM2565447000000 Hz3.8 dBmV40.5 dB11200315305
6LockedQAM2566453000000 Hz5.0 dBmV40.9 dB5782614028
7LockedQAM2567459000000 Hz5.3 dBmV40.8 dB3426511672
8LockedQAM2568465000000 Hz4.3 dBmV40.3 dB397929140
Highlighted
Expert

Re: T3, T4 timeouts every minute

The upstream power is too high / out of spec. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.

In a self troubleshooting effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1002 MHz, bi-directional, and no gold colored garbage types like GE, RadioShack, RCA, Philips, Leviton, Magnavox, and Rocketfish from big box stores like Home Depot, Lowes, Target, Wal-Mart etc. Splitters should be swapped with known to be good / new ones to test

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two way splitter connected directly off of the drop from the street/pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed, and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.



I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!