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jpwesterman's avatar
jpwesterman
Aspirant
Jan 23, 2023

CM1200 Downstream light blinking and Cox wont help

For a couple of weeks now we will get sudden drops during the day needing to restart the modem and router to gain service. Since then the downstream arrow has been blinking. I contacted Cox and of course, they blame it on the equipment that isn't theirs.  I'm seeing quite a few errors and included them below.

 

 
TimePriorityDescription
Mon Jan 23 16:06:21 2023Notice (6)CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 16:05:55 2023Notice (6)CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 2 3.;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 16:02:59 2023Notice (6)CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 16:02:34 2023Notice (6)CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 2 3.;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:54:06 2023Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:50:19 2023Notice (6)CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:50:09 2023Notice (6)CM-STATUS message sent. Event Type Code: 20; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:50:09 2023Notice (6)CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:50:08 2023Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:49:01 2023Warning (5)Dynamic Range Window violation
Mon Jan 23 15:49:01 2023Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:49:00 2023Warning (5)Dynamic Range Window violation
Mon Jan 23 15:49:00 2023Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:49:00 2023Warning (5)Dynamic Range Window violation
Mon Jan 23 15:49:00 2023Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:49:00 2023Warning (5)Dynamic Range Window violation
Mon Jan 23 15:49:00 2023Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:49:00 2023Warning (5)Dynamic Range Window violation
Mon Jan 23 15:49:00 2023Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:49:00 2023Warning (5)Dynamic Range Window violation
Mon Jan 23 15:49:00 2023Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:48:59 2023Warning (5)REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:48:55 2023Notice (6)DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:48:50 2023Notice (6)TLV-11 - unrecognized OID;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:48:49 2023Warning (5)DHCP WARNING - Non-critical field invalid in response ;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;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=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;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=6c:cd:d6:6b:b5:24;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:47:32 2023Critical (3)Resetting the cable modem due to docsDevResetNow
Mon Jan 23 15:44:16 2023Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:19:45 2023Notice (6)CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:19:39 2023Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:19:35 2023Notice (6)CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:19:25 2023Notice (6)CM-STATUS message sent. Event Type Code: 20; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:19:25 2023Notice (6)CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:19:15 2023Notice (6)CM-STATUS message sent. Event Type Code: 20; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:19:15 2023Notice (6)CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:18:42 2023Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Mon Jan 23 15:18:34 2023Warning (5)Dynamic Range Window violation
Mon Jan 23 15:18:34 2023Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=6c:cd:d6:6b:b5:24;CMTS-MAC=b0:8b:d0:23:85:5d;CM-QOS=1.1;CM-VER=3.1;
Hardware

4 Replies

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User
    Jan 23, 2023

    What Firmware version is currently loaded?
    Please post a copy and paste of the modems connection status page.
    https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-router

    Be sure your using a good quality LAN cable between the modem and router. CAT6 is recommended. 
    What is the brand and model of the host wifi router connected to the modem?

     

    You have Criticals and Warnings the the ISP needs to review and help resolve from there side. 

     

    Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
    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. 
    Start with removing any amplifiers, signal attenuators, or splitters from the coax.
    From there check the line for kinks, damage, moisture in the line.
    Check the connectors for improperly made ends, foil touching the copper coax line, loose connections, bad/old/cheap connectors, or corroded connections. Replace them if you do.
    Be sure to power OFF the modem for 1 minute then back ON.
    https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
    https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
    https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html

  • plemans's avatar
    plemans
    Guru - Experienced User
    Jan 24, 2023

    Your log indicates line issues.

    But its tough to tell without the cable connections page. Sometimes its to low of power and sometimes to high. 

    Or sometimes its just straight up issues. 

    If you can post that back here, it gives us a little direction to point you in. 

     

    In the mean time, you can start with removing any amplifiers, signal attenuators, or splitters from the coax.
    From there check the line for kinks, damage, moisture in the line.
    Check the connectors for improperly made ends, foil touching the copper coax line, loose connections, bad/old/cheap connectors, or corroded connections. Replace them if you do.
    If you can, simply connect the modem right where the coax comes into the home. This prevents wiring in the home from being the issue. And some ISP’s charge if the wiring issue is in the home. So this helps prevent this.

    • jpwesterman's avatar
      jpwesterman
      Aspirant
      Jan 24, 2023

      Hey, thanks for the quick response. Ill try that and see. Please find the cable connection below.

       

      Startup Procedure
      ProcedureStatusComment
      Acquire Downstream Channel429000000 HzLocked
      Connectivity StateOKOperational
      Boot StateOKOperational
      SecurityEnabledBPI+
      IP Provisioning ModeHonor MDDhonorMdd(4)
       
      Downstream Bonded Channels
      ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectables
      1LockedQAM25645429000000 Hz-1.4 dBmV44.1 dB47178
      2LockedQAM2561675000000 Hz-0.6 dBmV43.1 dB2544
      3LockedQAM2562681000000 Hz-0.9 dBmV44.1 dB1454
      4LockedQAM2563687000000 Hz-1.2 dBmV43.9 dB2646
      5LockedQAM2564693000000 Hz-1.9 dBmV43.5 dB2545
      6LockedQAM2565699000000 Hz-2.4 dBmV43.1 dB1955
      7LockedQAM2566705000000 Hz-2.7 dBmV42.9 dB5527
      8LockedQAM2567711000000 Hz-2.7 dBmV42.9 dB2829
      9LockedQAM2568717000000 Hz-2.3 dBmV43.1 dB3523
      10LockedQAM2569723000000 Hz-1.9 dBmV43.4 dB3023
      11LockedQAM25610729000000 Hz-1.6 dBmV43.5 dB3426
      12LockedQAM25611735000000 Hz-1.4 dBmV43.6 dB2642
      13LockedQAM25612741000000 Hz-1.4 dBmV43.5 dB1851
      14LockedQAM25613747000000 Hz-1.5 dBmV43.4 dB2648
      15LockedQAM25614753000000 Hz-1.6 dBmV43.4 dB2160
      16LockedQAM25615759000000 Hz-1.6 dBmV43.4 dB1556
      17LockedQAM25616765000000 Hz-1.8 dBmV43.3 dB16026
      18LockedQAM25633357000000 Hz-0.3 dBmV44.6 dB3475
      19LockedQAM25634363000000 Hz-0.4 dBmV44.6 dB2485
      20LockedQAM25635369000000 Hz-0.6 dBmV44.5 dB26107
      21LockedQAM25636375000000 Hz-0.6 dBmV44.5 dB31152
      22LockedQAM25637381000000 Hz-0.6 dBmV44.5 dB49165
      23LockedQAM25638387000000 Hz-0.6 dBmV44.5 dB35203
      24LockedQAM25639393000000 Hz-0.6 dBmV44.5 dB40218
      25LockedQAM25640399000000 Hz-0.6 dBmV44.5 dB33216
      26LockedQAM25641405000000 Hz-0.6 dBmV44.5 dB44200
      27LockedQAM25642411000000 Hz-0.7 dBmV44 dB67212
      28LockedQAM25643417000000 Hz-1 dBmV44.4 dB63206
      29LockedQAM25644423000000 Hz-1.2 dBmV44.2 dB71213
      30LockedQAM25646435000000 Hz-1.5 dBmV44 dB77183
      31LockedQAM25647441000000 Hz-1.8 dBmV44 dB17102
      32LockedQAM25648447000000 Hz-1.8 dBmV44 dB153420
       
      Upstream Bonded Channels
      ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
      1LockedATDMA15120 Ksym/sec17400000 Hz39 dBmV
      2LockedATDMA25120 Ksym/sec23900000 Hz39.5 dBmV
      3LockedATDMA35120 Ksym/sec30300000 Hz39.5 dBmV
      4LockedATDMA45120 Ksym/sec36700000 Hz39.5 dBmV
      5LockedATDMA55120 Ksym/sec60000000 Hz39.5 dBmV
      6LockedATDMA65120 Ksym/sec67000000 Hz40 dBmV
      7LockedATDMA75120 Ksym/sec74000000 Hz40.8 dBmV
      8LockedATDMA85120 Ksym/sec81000000 Hz40.8 dBmV
       
      Downstream OFDM Channels
      ChannelLock
      Status      		Modulation /
      Profile ID      		Channel
      ID      		FrequencyPowerSNR /
      MER      		Active Subcarrier
      Number Range      		Unerrored
      Codewords      		Correctable
      Codewords      		Uncorrectable
      Codewords
      1Locked0 ,1 ,2 ,3159300000000 Hz0.4 dBmV44.9 dB2216 ~ 59751909698306234000733877
      2Not Locked000 Hz0 dBmV0.0 dB0 ~ 4095000
       
      Upstream OFDMA Channels
      ChannelLock StatusModulation / Profile IDChannel IDFrequencyPower
      1Not Locked000 Hz0 dBmV
      2Not Locked000 Hz0 dBmV
       
      • FURRYe38's avatar
        FURRYe38
        Guru - Experienced User
        Jan 28, 2023

        You have Correctables and Un-correctables that should be mostly zeros. 

        Check all fittings and cable runs. Remove any splitters as suggested. Ensure coax jacks are snug and inplace well. 

        jpwesterman