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brm5124's avatar
brm5124
Tutor
Dec 27, 2020
Solved

c7000v2 resets

I am getting frequent modem resets. The event log states:"Received Response to Broadcast Maintenance Request. But no Unicast Maintenance opportunities received. T4 time out, CM MAC=38.94 ed: dd:f4:c...
  • plemans's avatar
    plemans
    Dec 28, 2020

    You're power levels are out of spec. They should be within 3.5dbmv of each other. Yours goes from 4.3dbmv to 10.7dbmv. A 6.5dbmv difference. a little variation is fine but that's quite far. 

     

    If they're saying the lines fine, maybe it is indeed a modem issue. You can always try renting a modem from the ISP for a month. If it works fine, it could be the modem. If there's issues, then the ISP can't blame the modem. 

    It could also be that the ISP gave you a docsis 3.1 device which is a little more tolerant of power fluctuations/levels.