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Solved
C6300 keeps dropping internet
I have 9 devices, Included all the smart home stuff. This happens several times a day for several minutes where the internet just drops. I haven’t changed my internet habits to initiate this intermed...
Please post a copy and paste of the modems connection status page.
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.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
ISP reports showing the modem in an active status and the device is not showing an up time reset. We were also able to successfully ping the device and receive replies with no packet loss.
So did the ISP correct the problem then?
- They did not.
Keep on them. Review the suggestion given.
this is an really an ISP problem. Logs clearly show it.
when you see "Unicast Maintenance Ranging attempted - No response - Retries exhausted" that means one of the upstream channels is having noise or completely disconnected. this is outside your home or street level noise.
who is the ISP?
Aug 01 2021 19:12:29 Critical (3) No Ranging Response received - T3 time-out
Aug 01 2021 19:12:28 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 01 2021 19:12:28 Critical (3) Ranging Request Retries exhausted
Aug 01 2021 19:12:20 Critical (3) No Ranging Response received - T3 time-out
Aug 01 2021 19:12:06 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 01 2021 19:12:06 Critical (3) Ranging Request Retries exhausted
Aug 01 2021 19:11:39 Critical (3) No Ranging Response received - T3 time-out
Aug 01 2021 19:11:38 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 01 2021 19:11:38 Critical (3) Ranging Request Retries exhausted
Aug 01 2021 19:10:54 Critical (3) No Ranging Response received - T3 time-out- ISP is xfinity Comcast.
