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Soul22's avatar
Soul22
Tutor
Jan 07, 2021

Log codes and internet disconnections

C7800 errors and disconnects Log code says: critical 3 Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=44:a5:6e:b4:62:48;CMTS-MAC=00:a3:d1:5d:61:5b;CM-QOS=1.1;CM-VER=3...
FURRYe38's avatar
FURRYe38
Guru - Experienced User
Jan 07, 2021

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. 
Be sure to power OFF the modem for 1 minute them back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853

  • Soul22's avatar
    Soul22
    Tutor
    Jan 07, 2021
    All of that has been done. I’m trying to determine what the critical log code 3 means and can’t find the info anywhere.
    • FURRYe38's avatar
      FURRYe38
      Guru - Experienced User
      Jan 07, 2021

      I believe plemans may know this...

      • plemans's avatar
        plemans
        Guru - Experienced User
        Jan 07, 2021

        Take a screen snip of the full event logs as well as the cable connections page and post them back here. You'll have to do more than 1 post (use the "choose file" method or we can't see it for several days)