CM600 T2 T3 T4 errors - intermittent service outages (Spectrum)

Question

Hi All,&nbsp;Been having some issues with my interenet the last few months. I have been having intermittent outages about every 30 min to 1.5 hours. I have had Spectrum come out and 3 times so far and have had drop a new line from the pole to my house and they believe the line is good now. I don't believe there are any issues with the modem either. When the internet is working, it is great and get close to the advertized speeds I pay for. Here's some logs from the modem, hoping anyone could give me some insight on what to do next.&nbsp;&nbsp;TimePriorityDescription2020-10-02, 16:55:09Error (4)Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.1;CM-VER=3.0;2020-10-02, 16:55:09Error (4)Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.1;CM-VER=3.0;2020-10-02, 16:51:35Critical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:48:40Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:48:38Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:48:37Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:48:31Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:48:29Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:48:17Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:48:16Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:48:14Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:48:13Critical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:24:55Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:24:49Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:24:48Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:24:28Critical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:01:09Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 16:00:26Critical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 15:37:07Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 15:36:32Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 15:36:31Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 15:36:24Critical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 15:13:06Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 15:13:05Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 15:13:03Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 15:13:02Critical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 14:04:35Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;2020-10-02, 14:04:34Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

FURRYe38 · Answer

Can you post the information found under the cable connection status page please. Should have signal line information (dB) here.

Be sure there are no coax cable line splitters in the between the modem and ISP service box.
Be sure your using good quality RG6 coax cable up to the modem.
Be sure to power OFF the modem for 1 minute them back ON.

Forum Discussion

CM600 T2 T3 T4 errors - intermittent service outages (Spectrum)

1 Reply

Time	Priority	Description
2020-10-02, 16:55:09	Error (4)	Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.1;CM-VER=3.0;
2020-10-02, 16:55:09	Error (4)	Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.1;CM-VER=3.0;
2020-10-02, 16:51:35	Critical (3)	No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:48:40	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:48:38	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:48:37	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:48:31	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:48:29	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:48:17	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:48:16	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:48:14	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:48:13	Critical (3)	No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:24:55	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:24:49	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:24:48	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:24:28	Critical (3)	No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:01:09	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 16:00:26	Critical (3)	No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 15:37:07	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 15:36:32	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 15:36:31	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 15:36:24	Critical (3)	No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 15:13:06	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 15:13:05	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 15:13:03	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 15:13:02	Critical (3)	No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 14:04:35	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;
2020-10-02, 14:04:34	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:0f:0c:f8;CMTS-MAC=00:17:10:8d:f3:a1;CM-QOS=1.0;CM-VER=3.0;