Intermittent connectivity problems. Looks like modem keeps resetting. Service call yesterday and tech replaced the modem; however problems continue. During an outage, I checked signal levels and it was 50+dbmv on the uplink.
Whenever I look at signal levels, they look fine. However, I keep getting "No Ranging Response, T3 Timeout" messages in the log.
Modem is Techicolor MediaAccess TC8305C. Here are the modem logs:
Time Priority Description Sat May 10 09:56:58 2014 Notice (6) TLV-11 - unrecognized OID;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.1;CM-VER=3.0; Sat May 10 09:56:40 2014 Notice (6) Honoring MDD; IP provisioning mode = IPv6 Sat May 10 09:56:32 2014 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.0;CM-VER=3.0; Sat May 10 09:56:20 2014 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.0;CM-VER=3.0; Sat May 10 09:55:47 2014 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.0;CM-VER=3.0; Sat May 10 09:54:56 2014 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.0;CM-VER=3.0; Sat May 10 09:54:26 2014 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.1;CM-VER=3.0; Sat May 10 09:53:54 2014 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.1;CM-VER=3.0; Sat May 10 09:40:55 2014 Notice (6) TLV-11 - unrecognized OID;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.1;CM-VER=3.0; Sat May 10 09:40:37 2014 Notice (6) Honoring MDD; IP provisioning mode = IPv6 Sat May 10 09:40:30 2014 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.0;CM-VER=3.0; Sat May 10 09:40:10 2014 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.1;CM-VER=3.0; Sat May 10 09:39:37 2014 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.1;CM-VER=3.0; Sat May 10 09:34:37 2014 Notice (6) TLV-11 - unrecognized OID;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.1;CM-VER=3.0; Sat May 10 09:34:20 2014 Notice (6) Honoring MDD; IP provisioning mode = IPv6 Sat May 10 09:34:12 2014 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.0;CM-VER=3.0; Sat May 10 09:34:06 2014 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.0;CM-VER=3.0; Sat May 10 09:33:49 2014 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.1;CM-VER=3.0; Sat May 10 09:33:20 2014 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.1;CM-VER=3.0; Sat May 10 09:25:17 2014 Notice (6) TLV-11 - unrecognized OID;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.1;CM-VER=3.0; Sat May 10 09:25:04 2014 Notice (6) Honoring MDD; IP provisioning mode = IPv6 Sat May 10 09:24:53 2014 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.0;CM-VER=3.0; Sat May 10 09:24:35 2014 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.1;CM-VER=3.0; Sat May 10 09:24:02 2014 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:58;CM-QOS=1.1;CM-VER=3.0; Sat May 10 09:21:05 2014 Notice (6) TLV-11 - unrecognized OID;CM-MAC=88:f7:c7:30:cb:6d;CMTS-MAC=00:01:5c:4e:7c:5
Here are the signal levels