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Telcontarr's avatar
Telcontarr
Aspirant
Feb 26, 2021

CM1200 Repeated Disconnects

Hello, I am experiencing problems with my CM1200 repeatedly disconnecting and reconnecting multiple times unpredictably. I have proceeded with all the usual steps of disconnect and power off, wait ~...
Telcontarr's avatar
Telcontarr
Aspirant
Feb 26, 2021

Thanks! I'll have them check those things, I don't think there are any splitters in the line. 

Do you have a recommendation for a good RG6 cable to use?

FURRYe38's avatar
FURRYe38
Guru - Experienced User
Feb 26, 2021

The ISP should have good RG6 Coax to use...

  • Telcontarr's avatar
    Telcontarr
    Aspirant
    Mar 24, 2021

    Had a second follow up visit on the issue and the Spectrum techs said everything looked fine from their end and saw no router failures, even when there were drops this morning before they got here. I can't determine what's going wrong or where. Here are the event logs if anyone can help me understand what I'm seeing. Tech took a look and said "I can't do anything with your personal equipment". 

    Wed Mar 24 10:13:44 2021Critical (3)Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=08:36:c9:40:c3:d0;CMTS-MAC=00:17:10:86:bd:cb;CM-QOS=1.1;CM-VER=3.1;
    Wed Mar 24 10:13:44 2021Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:40:c3:d0;CMTS-MAC=00:17:10:86:bd:cb;CM-QOS=1.1;CM-VER=3.1;
    Wed Mar 24 10:13:43 2021Warning (5)Dynamic Range Window violation
    Wed Mar 24 10:13:43 2021Warning (5)RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:40:c3:d0;CMTS-MAC=00:17:10:86:bd:cb;CM-QOS=1.1;CM-VER=3.1;
    Wed Mar 24 10:13:43 2021Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:40:c3:d0;CMTS-MAC=00:17:10:86:bd:cb;CM-QOS=1.1;CM-VER=3.1;
    Wed Mar 24 10:13:37 2021Warning (5)Dynamic Range Window violation
    Wed Mar 24 10:13:37 2021Warning (5)RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:40:c3:d0;CMTS-MAC=00:17:10:86:bd:cb;CM-QOS=1.1;CM-VER=3.1;
    Wed Mar 24 10:13:37 2021Warning (5)Dynamic Range Window violation
    Wed Mar 24 10:13:37 2021Warning (5)RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:40:c3:d0;CMTS-MAC=00:17:10:86:bd:cb;CM-QOS=1.1;CM-VER=3.1;
    Wed Mar 24 10:13:37 2021Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:40:c3:d0;CMTS-MAC=00:17:10:86:bd:cb;CM-QOS=1.1;CM-VER=3.1;
    Wed Mar 24 10:13:33 2021Warning (5)Dynamic Range Window violation
    Wed Mar 24 10:13:33 2021Warning (5)RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:40:c3:d0;CMTS-MAC=00:17:10:86:bd:cb;CM-QOS=1.1;CM-VER=3.1;
    Wed Mar 24 10:13:33 2021Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:40:c3:d0;CMTS-MAC=00:17:10:86:bd:cb;CM-QOS=1.1;CM-VER=3.1;
    Wed Mar 24 10:13:27 2021Warning (5)Dynamic Range Window violation
    Wed Mar 24 10:13:27 2021Warning (5)RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=08:36:c9:40:c3:d0;CMTS-MAC=00:17:10:86:bd:cb;CM-QOS=1.1;CM-VER=3.1;
    • Telcontarr's avatar
      Telcontarr
      Aspirant
      Mar 27, 2021

      I'm getting really tired of dealing with problems with Netgear equipment. Is there no support to tell me what's going wrong? 

      • FURRYe38's avatar
        FURRYe38
        Guru - Experienced User
        Mar 27, 2021

        Seeing lots of uncorrectables on the status table. Seems that the mofem can't get a good signal or having problems with the signal on the line. 

        What Version of FW is loaded on the modem?