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KiwiBoxer's avatar
KiwiBoxer
Guide
Jun 19, 2020

Random Internet Disconnection on Both Wi-fi and Wired (CM1200 Modem)

I purchased the CM1200 modem back in March of this year and haven't had an issue with until the past month and a half. I'm having an issue where my internet will randomly disconnect on both Wired and...
KiwiBoxer's avatar
KiwiBoxer
Guide
Jun 19, 2020

plemans 

I'm not sure how to attach multiple things so I hope an Imgur link of the screenshots is ok: CM1200 Screenshots

Here is at least the event log if you're not ok with that.

Thanks!

 

Time Priority Description
Fri Jun 19 10:00:22 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 10:00:22 2020 Warning (5) RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 10:00:22 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 10:00:22 2020 Warning (5) RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 10:00:22 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 10:00:22 2020 Warning (5) RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 10:00:22 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 10:00:22 2020 Warning (5) RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:54:56 2020 Notice (6) CM-STATUS message sent. Event Type Code: 24; Chan ID: 25; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:54:30 2020 Notice (6) CM-STATUS message sent. Event Type Code: 16; Chan ID: 25; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:36:52 2020 Notice (6) CM-STATUS message sent. Event Type Code: 8; Chan ID: 79 80; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:36:26 2020 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:36:26 2020 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:36:26 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:35:39 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:35:39 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:35:38 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:35:38 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:35:37 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:35:37 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:35:37 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:35:37 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:35:37 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:54 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:54 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:54 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:54 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:54 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:54 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:54 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:54 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:54 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:54 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:36 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:36 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:36 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:36 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:36 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:36 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:35 2020 Warning (5) Dynamic Range Window violation

 

plemans's avatar
plemans
Guru - Experienced User
Jun 19, 2020

You have t3 errors and power fluctuation errors. The snip just shows in the time the page was loaded but from looking at your log, the power must be spiking/dropping. 

If you didn't check your line and remove amplifiers, splitters, attenuators, do it now. If you already have, then I'd have your isp check your line. 

  • KiwiBoxer's avatar
    KiwiBoxer
    Guide
    Jun 19, 2020

    I don't have any extra stuff like that added on. Looks like another call to my ISP! Hopefully that gets it resolved. Thanks for the advice!

    • plemans's avatar
      plemans
      Guru - Experienced User
      Jun 19, 2020

      ***Edit, wrong response. working on several at once. 

    • FURRYe38's avatar
      FURRYe38
      Guru - Experienced User
      Jun 23, 2020

      Any progress on this?

      KiwiBoxer wrote:

      I don't have any extra stuff like that added on. Looks like another call to my ISP! Hopefully that gets it resolved. Thanks for the advice!

       

      • KiwiBoxer's avatar
        KiwiBoxer
        Guide
        Jun 24, 2020

        After a couple calls I finally got Comcast to send a tech. They'll be coming early tomorrow. I'll update again a bit after to see if it's fixed.