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MitchVilla's avatar
MitchVilla
Aspirant
Feb 07, 2021

Intermittent network disconnection for CM1000

Hello all,

 

I've been having issues with my network which started 3.5 weeks ago. I'm experiencing network dropouts within a specific timeframe. I've already had my ISP tech stop by and they've explained that it's the splitter/POE filter that's causing it and went ahead and replaced them as well as provided me with their own coax cables, they've tested it and said it's good. This was a 2-hour job and multiple tests were done at the same timeframe my internet usually dc's. This was Thursday (2/4) and fast forward to the weekend and the issue still persists. I have gigabit internet, I've read through multiple forums and majority are asking about the logs so I've attached a file, unfortunately I don't know how to read these and cannot determine if my connection is good or not. My modem configuration is on default since whenever the issue happens I go aheand and factory reset it. Any assistance is greatly appreciated! 

 

Modem: CM1000

Firmware Version: V6.01.07

 

8 Replies

  • Here are my logs for the weekend.

     

    TimePriorityDescription
    2021-02-07, 13:17:12Warning (5)Dynamic Range Window violation
    2021-02-07, 13:17:12Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 13:17:12Warning (5)Dynamic Range Window violation
    2021-02-07, 13:17:12Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 13:17:12Warning (5)Dynamic Range Window violation
    2021-02-07, 13:17:12Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 13:17:07Notice (6)DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 13:17:02Notice (6)TLV-11 - unrecognized OID;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 13:17:02Warning (5)DHCP WARNING - Non-critical field invalid in response ;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    Time Not EstablishedNotice (6)Honoring MDD; IP provisioning mode = IPv4
    Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    Time Not EstablishedCritical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 13:15:51Critical (3)Resetting the cable modem due to docsDevResetNow
    2021-02-07, 00:37:47Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:37:36Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:37:23Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:37:23Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:37:20Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:37:20Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:37:19Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:37:19Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:35:52Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:35:49Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:24:26Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:24:22Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:24:02Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:24:02Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:23:43Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:23:42Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:23:23Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:23:22Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:22:35Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-07, 00:22:34Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    Time Not EstablishedCritical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
    2021-02-06, 16:30:18Critical (3)Resetting the cable modem due to docsDevResetNow
    2021-02-04, 14:46:16Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
    2021-02-04, 14:46:02Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-04, 14:46:01Critical (3)No Ranging Response received - T3 time-out;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
    2021-02-04, 14:46:01Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:0c:6b:ca:49:98;CMTS-MAC=d4:ad:71:0c:33:22;CM-QOS=1.1;CM-VER=3.1;
  • plemans's avatar
    plemans
    Guru - Experienced User

    Your power is going in and out of spec from the logs. 

    Do you also have your cable connections page info? (shows the signal strengths)

    • MitchVilla's avatar
      MitchVilla
      Aspirant

      Hello Plemans,

       

      The system keeps removing my response. Not sure why that's happening, I do not see any errors/warnings. I post it and I see it for a couple of minutes then it disappears. 

       

      Upstream Bonded Channels

      ChannelLock StatusModulationChannel IDFrequencyPower
      1LockedATDMA136300000 Hz41.3 dBmV
      2LockedATDMA229900000 Hz42.5 dBmV
      3LockedATDMA323500000 Hz42.0 dBmV
      4LockedATDMA416900000 Hz41.5 dBmV
      5Not LockedUnknown00 Hz0.0 dBmV
      6Not LockedUnknown00 Hz0.0 dBmV
      7Not LockedUnknown00 Hz0.0 dBmV
      8Not LockedUnknown00 Hz0.0 dBmV

       

      Downstream OFDM Channels

      ChannelLock StatusModulation / Profile IDChannel IDFrequencyPowerSNR / MERActive Subcarrier Number RangeUnerrored CodewordsCorrectable CodewordsUncorrectable Codewords
      1Locked0, 1, 2, 3159300000000 Hz4.5 dBmV42.8 dB1108 ~ 29875674690639264100
      2Not Locked000 Hz-39.1 dBmV0.0 dB0 ~ 4095000

       

      Upstream OFDMA Channels

      ChannelLock StatusModulation / Profile IDChannel IDFrequencyPower     
      1Not LockedUnknown00 Hz0 dBmV     
      2Not LockedUnknown00 Hz0 dBmV     
      • MitchVilla's avatar
        MitchVilla
        Aspirant

        this website is broken. I cannot upload my downstream table. for some reason it disappers a few minutes after I upload it with no notification or errors. I've tried uploading it as a photo, screenshot, attached table in this response. Nothing seems to work.