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jk320's avatar
jk320
Aspirant
Dec 01, 2020

c7000 dropping wifi

My modem/router is frequently unable to get internet/wifi signal to random things in the house. Sometimes its my computer, other times fire TV, etc. This is happening more frequently than ever. Usually hard rebooting it fixes the issue, only to happen again within days. I am having to unplug and restart the modem almost daily now. Looking for answers. 

8 Replies

  • plemans's avatar
    plemans
    Guru - Experienced User
    Dec 02, 2020

    do you have a screen snip of the cable connections page and the logs? 

    That lets us check the signal from the isp.

     

    Have you noticed if its mainly device on 2.4gh? 5ghz? wired devices?

    • jk320's avatar
      jk320
      Aspirant
      Dec 02, 2020

      I notice the 5ghz signal only becauase my smart TVs are on it. My computer is also usually on 5ghz which I notice the most. 

      Startup Procedure
      ProcedureStatusComment
      Acquire Downstream Channel537000000 HzLocked
      Connectivity StateOKOperational
      Boot StateOKOperational
      SecurityEnabledBPI+
      IP Provisioning ModeHonor MDDhonorMdd(4)
       
      Downstream Bonded Channels
      ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectables
      1LockedQAM25617537000000 Hz3.4 dBmV39.3 dB00
      2LockedQAM2561423000000 Hz3.4 dBmV39.4 dB00
      3LockedQAM2562435000000 Hz3.3 dBmV38.9 dB00
      4LockedQAM2563447000000 Hz3.8 dBmV39.3 dB00
      5LockedQAM2564453000000 Hz3.9 dBmV39.5 dB00
      6LockedQAM2565459000000 Hz3.8 dBmV39.5 dB00
      7LockedQAM2566465000000 Hz3.9 dBmV39.7 dB00
      8LockedQAM2567471000000 Hz3.8 dBmV39.8 dB00
      9LockedQAM2568477000000 Hz3.9 dBmV39.9 dB00
      10LockedQAM2569483000000 Hz3.6 dBmV39.8 dB00
      11LockedQAM25610489000000 Hz3.8 dBmV39.8 dB00
      12LockedQAM25611495000000 Hz3.9 dBmV39.6 dB00
      13LockedQAM25612507000000 Hz3.8 dBmV38.8 dB00
      14LockedQAM25613513000000 Hz3.6 dBmV39.2 dB00
      15LockedQAM25614519000000 Hz3.5 dBmV39.1 dB00
      16LockedQAM25615525000000 Hz3.2 dBmV38.8 dB00
      17LockedQAM25616531000000 Hz2.5 dBmV38.8 dB00
      18LockedQAM25618543000000 Hz2.4 dBmV39 dB00
      19LockedQAM25619549000000 Hz2.4 dBmV39 dB00
      20LockedQAM25620555000000 Hz2.3 dBmV39 dB00
      21LockedQAM25621561000000 Hz2.1 dBmV39 dB00
      22LockedQAM25622567000000 Hz2.3 dBmV39.4 dB00
      23LockedQAM25623573000000 Hz2.3 dBmV39.1 dB00
      24LockedQAM25624579000000 Hz2.1 dBmV39.1 dB00
       
      Upstream Bonded Channels
      ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
      1LockedATDMA45120 Ksym/sec35700000 Hz43.5 dBmV
      2LockedATDMA15120 Ksym/sec16200000 Hz43.5 dBmV
      3LockedATDMA25120 Ksym/sec22700000 Hz43.5 dBmV
      4LockedATDMA35120 Ksym/sec29200000 Hz43.5 dBmV
      5LockedATDMA51280 Ksym/sec41200000 Hz43.5 dBmV
      6Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
      7Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
      8Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
      • jk320's avatar
        jk320
        Aspirant
        Dec 02, 2020
         
         
         
        TimePriorityDescription
        2020-12-2, 03:09:13Warning (5)Dynamic Range Window violation
        2020-12-2, 03:09:12Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:cc:fc:61:de:b1;CM-QOS=1.1;CM-VER=3.0;
        2020-12-1, 23:08:43Warning (5)Dynamic Range Window violation
        1970-1-1, 00:00:50Notice (6)Honoring MDD; IP provisioning mode = IPv6
        1970-1-1, 00:00:40Notice (6)WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
        1970-1-1, 00:00:40Notice (6)WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT
        1970-1-1, 00:00:39Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        2020-11-29, 10:31:15Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:cc:fc:61:de:b1;CM-QOS=1.1;CM-VER=3.0;
        1970-1-1, 00:21:47Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:21:43Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:21:43Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:21:35Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:21:34Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:21:28Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:21:13Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:21:12Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:21:04Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:21:02Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:18:56Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:18:53Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:18:35Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:18:33Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:16:27Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:16:27Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:16:26Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:16:24Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:16:04Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:16:02Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:13:55Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:13:55Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:13:55Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:13:53Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:13:33Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:13:31Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:11:26Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:11:24Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:11:04Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:11:02Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:08:55Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
        1970-1-1, 00:08:55Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    • plemans's avatar
      plemans
      Guru - Experienced User
      Dec 03, 2020

      MDDCGLLC not sure what you're going for here. Just tossing in the firmware/hardware model of if you need help. If you need help, I'd recommend starting your own thread. 

       

      • MDDCGLLC's avatar
        MDDCGLLC
        Aspirant
        Dec 03, 2020

        Today our Comcast 100 mbs service has had unacceptable download speeds running from 0.25 mbs to 60.93 mbs off and on all day. Comcast technical support blames a Netgear C7000V2 compatibility issue. To determine if there was indeed a compatibility issue, the Netgear “Contact Us” form was used. However the submission was rejected because our July 2019 Netgear modem was out of warranty. Netgear's solution was to get an answer to the compatibility question using the Netgear Community forum. However, Netgear has yet to substantively respond to any of the numerous posts complaining about this Comcast-Netgear compatibility issue. Thus, Comcast's assertions must have merit. As a result, Netgear will be removed from our list of approved vendors due firstly to Netgear's unacceptable non-responsiveness to its customers and secondly because its products are apparently an unreliable investment.