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kmspgh's avatar
kmspgh
Aspirant
Nov 09, 2023

C7100V Stuck in a Boot Loop

Our C7100V Cable Modem keeps trying to boot and fails, likely due to a firmware upgrade that went .  Unable to see it to login.   It looks like I will need to connect my windows 11 laptop to it by a cable and try to re-load the firmware.  Would anyone have the instructions to do this along with the firmware file?  Comcast supported firmware may be V2.01.42.  Thanks

4 Replies

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User
    Nov 09, 2023

    You'll need to contact the ISP for this. ISPs are the only ones that can push FW to C and CM series modems. There is no user UI for user updates. 

     

    Disconnect the coax cable and power OFF the modem for 1 minute then back ON with out the coax cable connected, does this stop the boot loop? 

     

    • kmspgh's avatar
      kmspgh
      Aspirant
      Nov 09, 2023

      It does not.  I have tried every potential solution.  Unfortunately, Comcast tells me to contact Netgear.

      • FURRYe38's avatar
        FURRYe38
        Guru - Experienced User
        Nov 09, 2023

        Try a 30-30-30 reset with the modem. Look online for this method.