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BennyBenX's avatar
BennyBenX
Aspirant
Aug 03, 2020

CM1000 How to stop daily reboot

Hello I need help troubleshooting why my modem restarts itself every day at a specific time. I'm not sure if it's because of a DHCP lease time or something else. Here are some log messages on my modem.


I've already tried factory resetting the modem and the problem still occurs.

Thanks.
Firmware Version 7.01.01


2020-08-03, 03:24:22Notice (6)DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:01:5c:ac:0c:49;CM-QOS=1.1;CM-VER=3.1;
Time Not EstablishedNotice (6)Honoring MDD; IP provisioning mode = IPv6
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:01:5c:ac:0c:49;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=08:36:c9:a5:8f:28;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2020-08-03, 03:22:09Critical (3)SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:01:5c:ac:0c:49;CM-QOS=1.1;CM-VER=3.1;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:01:5c:ac:0c:49;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=08:36:c9:a5:8f:28;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:01:5c:ac:0c:49;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=08:36:c9:a5:8f:28;CMTS-MAC=00:00:00:00:00:00;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=08:36:c9:a5:8f:28;CMTS-MAC=00:00:00:00:00:00;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=08:36:c9:a5:8f:28;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

 

18 Replies

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User
    Aug 03, 2020

    Have the ISP check the signal and line quality UP to the modem. 
    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. 
    Be sure to power OFF the modem for 1 minute them back ON.

    • BennyBenX's avatar
      BennyBenX
      Aspirant
      Aug 03, 2020

      I have checked in with my ISP twice and both times they verified my connection looks good on their end. There are no splitters going to my modem. I am using a RG6 coax cable up to my modem. 

      The only thing I haven't tried is powering the modem off for a minute. I'll try that and I'll have to wait until 4:21 EST to see if it worked.

       

      I've also just factory reset my Nighthawk R7000 router to see any progress. 

      This issue didn't happen until last week but it's been happening every day now.

       

      In the mean time is there any other clues we can look at for my issue?

       

      Thanks,

      Ben

      • vkdelta's avatar
        vkdelta
        NETGEAR Employee Retired
        Aug 03, 2020

        pls post connection table screenshots.