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ShelboTron's avatar
ShelboTron
Aspirant
May 15, 2024

Nighthawk C7000v2 needing frequent rebooting

I just got this router/modem from Best Buy roughly 3 months ago. Everything seems to work great for a couple of weeks at a time. I have a 600mbps plan, so I definitely notice when the internet gets s...
FURRYe38's avatar
FURRYe38
Guru - Experienced User
May 15, 2024

What channels are you using? Auto? Try setting manual channel 1, 6 or 11 on 2.4Ghz and 40 to 48 channel on 5Ghz.
Any Wifi Neighbors near by? If so, how many?

Is Smart Connect enabled or disabled on the modem?

 

Be sure to disable any MAC Address randomizers on phones and pads while at home:
https://community.netgear.com/t5/Nighthawk-App/NETGEAR-Mobile-Applications-and-Apple-Devices-FAQ/td-p/2220015/jump-to/first-unread-message

 

Has a factory reset and setup from scratch been performed since last FW update? 

 

Please post a copy and paste of the modems connection status and event log page.
https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-router
https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-router

  • ShelboTron's avatar
    ShelboTron
    Aspirant
    May 15, 2024

    Okay so I did have the channels on auto...so I changed them to what you suggested. However it's not just my wifi that drops. It's my ethernet/direct connection to my PC that also shows the slow down. I have always had to reboot it to get it to fix again. 

    Here's the event log page. 

    2024-5-15, 14:12:39Notice (6)WiFi Interface [wl1] set to Channel 48 (Side-Band Channel:N/A) - Reason:INTERFERENCE
    2024-5-15, 14:12:10Notice (6)WiFi Interface [wl0] set to Channel 6 (Side-Band Channel:N/A) - Reason:INTERFERENCE
    2024-5-15, 14:12:06Notice (6)WiFi Interface [wl0] set to Channel 6 (Side-Band Channel:2) - Reason:GUI
    2024-5-14, 02:04:58Notice (6)Honoring MDD; IP provisioning mode = IPv6
    2024-5-14, 02:04:42Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:04:33Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:04:32Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:04:30Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:04:29Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:04:27Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:04:26Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:04:15Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:04:14Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:40Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:39Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:36Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:35Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:34Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:32Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:29Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:28Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:25Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:24Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:23Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:21Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:18Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:17Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:12Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:11Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:10Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:08Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:07Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:05Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:04Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:03:03Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:02:53Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:02:52Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:02:44Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:02:44Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2024-5-14, 02:02:40Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:02:53:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    • FURRYe38's avatar
      FURRYe38
      Guru - Experienced User
      May 15, 2024

      Lets see the cable connections log data please. 

       

      Any Criticals, Errors or Warnings seen in the event logs needs to be reviewed and resolved by the ISP. Indicates a signal issue on the ISP line up to the modem.

      • ShelboTron's avatar
        ShelboTron
        Aspirant
        May 15, 2024

        Sorry, I'm not really savvy with this stuff. How do I get to the "cable connection" specifically? All I can see are the event logs.