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roll0ver's avatar
roll0ver
Aspirant
Apr 11, 2021

CM500 Intermittent Packet Loss multiple times daily WOW! Internet

Have called but they keep saying it looks fine from thier end (clearly offshore tech support)

 

Here is the SYNC timing loss repeadedly in the logs:

 

Time Priority Description
2021-4-11, 21:11:01Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 21:11:00Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 21:10:58Warning (5)MDD message timeout;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 21:10:54Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 20:41:27Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 20:41:24Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 20:41:23Warning (5)MDD message timeout;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 20:41:20Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 20:11:55Warning (5)MDD message timeout;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 20:11:52Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 20:11:49Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 20:11:48Warning (5)MDD message timeout;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 20:11:45Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 19:42:21Warning (5)MDD message timeout;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 19:42:18Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 19:42:15Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 19:42:14Warning (5)MDD message timeout;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 19:42:11Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 19:12:43Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 19:12:42Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 19:12:41Warning (5)MDD message timeout;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 19:12:37Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 18:43:09Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 18:43:08Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 18:43:06Warning (5)MDD message timeout;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 18:43:02Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 18:13:36Warning (5)MDD message timeout;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 18:13:34Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 18:13:33Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 18:13:32Warning (5)MDD message timeout;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 18:13:28Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 17:44:00Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 17:43:57Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 17:43:56Warning (5)MDD message timeout;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 17:43:53Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 16:44:54Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 16:44:51Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 16:44:50Warning (5)MDD message timeout;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 16:44:47Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;
2021-4-11, 16:15:23Warning (5)MDD message timeout;CM-MAC=bc:a5:11:96:58:94;CMTS-MAC=00:01:5c:72:78:73;CM-QOS=1.1;CM-VER=3.0;

1 Reply

  • roll0ver's avatar
    roll0ver
    Aspirant
    Apr 11, 2021

    Connection page:

    Frequency start Value
    This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.
    Starting Frequency
     

    Startup Procedure

    Procedure Status Comment
    Acquire Downstream Channel621000000 HzLocked
    Connectivity StateOKOperational
    Boot StateOKOperational
    SecurityEnabledBPI+
    IP Provisioning ModeHonor MDDhonorMdd(4)
     

    Downstream Bonded Channels

    Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
    1LockedQAM25614621000000 Hz-6 dBmV37.8 dB22976313
    2LockedQAM25612603000000 Hz-6.7 dBmV37.4 dB681559
    3LockedQAM25613615000000 Hz-6.4 dBmV37.8 dB783829
    4LockedQAM25616633000000 Hz-4.5 dBmV38.4 dB16503825
    5LockedQAM25617639000000 Hz-4.1 dBmV38.7 dB15853935
    6LockedQAM25618645000000 Hz-4.5 dBmV38.9 dB761285
    7LockedQAM25619651000000 Hz-4.6 dBmV38.9 dB726269
    8LockedQAM25620657000000 Hz-4.8 dBmV38.6 dB706361
    9LockedQAM25621663000000 Hz-4.8 dBmV38.6 dB709329
    10LockedQAM25622669000000 Hz-5.1 dBmV38.4 dB746267
    11LockedQAM25623675000000 Hz-5.1 dBmV37.8 dB748272
    12LockedQAM25624681000000 Hz-5.6 dBmV38.3 dB653347
    13LockedQAM25625687000000 Hz-5.9 dBmV38.1 dB724323
    14LockedQAM25626693000000 Hz-6.4 dBmV37.9 dB652399
    15LockedQAM25627699000000 Hz-6.3 dBmV38 dB647375
    16LockedQAM25628729000000 Hz-5.3 dBmV37.2 dB7293052
     

    Upstream Bonded Channels

    Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
    1LockedATDMA855120 Ksym/sec21900000 Hz46.3 dBmV
    2LockedATDMA865120 Ksym/sec28300000 Hz47 dBmV
    3LockedATDMA875120 Ksym/sec34700000 Hz47.3 dBmV
    4LockedATDMA882560 Ksym/sec39500000 Hz47.5 dBmV