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ezicefield's avatar
ezicefield
Follower
Jan 27, 2016

C7000-100NAS randomly drops internet connection

Hello,   My C7000-100NAS modem seems to randomly drop it's Comcast connection. This happen on 2.4 ghz, 5 ghz, and wired connections. There is no pattern, however the dropped connection usually last...
Firmware
Hardware
Troubleshooting
Robotaz's avatar
Robotaz
Aspirant
May 30, 2016

I am currently going through a debacle with Time Warner and a C7000 as well.

 

Unfortunately, I have very little networking expertise.  I've honestly never needed any.  Everything seemed to be fine and TWC upgraded their system to provide much faster speeds.  Immediately I was getting drops, wild speed variations, etc.

 

Currently I have a connection, but my upstream LED is blinking.  I expect to have continued dropping until a tech can come out next week.  But, I'm really worried that it's something on my end; namely this C7000.

 

Here is my log.  Any feedback at all will help me tremendously.

 

TimePriorityDescription
2016-5-29, 21:32:32Critical (3)No Ranging Response received - T3 time-out;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:32:41Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:32:42Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:32:46Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:32:46Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:32:49Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:32:50Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:32:50Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:32:51Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:32:52Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:32:52Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:32:54Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:32:54Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:37:18Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:37:31Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:37:32Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:37:46Critical (3)No Ranging Response received - T3 time-out;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:00:38Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:00:45Critical (3)No Ranging Response received - T3 time-out;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:40:36Critical (3)No Ranging Response received - T3 time-out;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:00:37Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:00:43Critical (3)No Ranging Response received - T3 time-out;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 21:47:47Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.1;CM-VER=3.0;
1970-1-1, 00:00:38Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:00:41Notice (6)WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT
1970-1-1, 00:00:41Notice (6)WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
1970-1-1, 00:00:46Notice (6)Overriding MDD IP initialization parameters; IP provisioning mode = IPv6
1970-1-1, 00:00:56Warning (5)ToD request sent - No Response received;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:00:57Error (4)Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.1;CM-VER=3.0;
1970-1-1, 00:00:57Error (4)Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.1;CM-VER=3.0;
2016-5-29, 22:32:46Critical (3)No Ranging Response received - T3 time-out;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 22:32:53Notice (6)Overriding MDD IP initialization parameters; IP provisioning mode = IPv6
2016-5-29, 22:33:07Error (4)Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.1;CM-VER=3.0;
2016-5-29, 22:33:07Error (4)Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.1;CM-VER=3.0;
2016-5-29, 22:33:13Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 22:33:18Critical (3)No Ranging Response received - T3 time-out;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.0;CM-VER=3.0;
2016-5-29, 22:33:22Notice (6)Overriding MDD IP initialization parameters; IP provisioning mode = IPv6
2016-5-29, 22:33:32Error (4)Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.1;CM-VER=3.0;
2016-5-29, 22:33:32Error (4)Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.1;CM-VER=3.0;
2016-5-29, 22:35:05Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=40:5d:82:f4:30:08;CMTS-MAC=00:01:5c:64:5a:53;CM-QOS=1.1;CM-VER=3.0;
 
 
 
 
ProcedureStatusComment
Acquire Downstream Channel729000000 HzLocked
Connectivity StateOKOperational
Boot StateOKOperational
SecurityEnabledBPI+
IP Provisioning ModeIPv6 Onlyipv6Only(1)
 
Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectables
1LockedQAM25615729000000 Hz-0.1 dBmV41 dB00
2LockedQAM2561645000000 Hz-0.1 dBmV39 dB00
3LockedQAM2562651000000 Hz-0.6 dBmV39 dB00
4LockedQAM2563657000000 Hz-1.3 dBmV39.6 dB00
5LockedQAM2564663000000 Hz-2.1 dBmV39.6 dB00
6LockedQAM25612669000000 Hz-1.7 dBmV39.1 dB00
7LockedQAM2565675000000 Hz-1.9 dBmV38.5 dB00
8LockedQAM2566681000000 Hz-1.3 dBmV39.9 dB00
9LockedQAM2567687000000 Hz-0.4 dBmV40.1 dB00
10LockedQAM2568693000000 Hz-0.3 dBmV39.9 dB00
11LockedQAM2569699000000 Hz-0.5 dBmV40.2 dB00
12LockedQAM25610705000000 Hz-0.6 dBmV40.4 dB00
13LockedQAM25611711000000 Hz-0.9 dBmV40.4 dB00
14LockedQAM25613717000000 Hz-0.7 dBmV40.4 dB00
15LockedQAM25614723000000 Hz-0.3 dBmV40.7 dB00
16LockedQAM25616735000000 Hz0.3 dBmV40.5 dB00
17Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
18Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
19Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
20Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
21Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
22Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
23Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
24Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
 
Upstream Bonded Channels (Partial Service)
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA145120 Ksym/sec24200000 Hz52 dBmV
2Not LockedUnknown130 Ksym/sec19400000 Hz0.0 dBmV
3LockedATDMA155120 Ksym/sec30600000 Hz51.9 dBmV
4LockedTDMA162560 Ksym/sec37000000 Hz52 dBmV
5Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
6Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
7Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
8Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
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