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Nighthawk AC1900 WiFi Cable Modem Router dBmV Power
I have a Nighthawk AC1900 WiFi Cable Modem Router with xfinity internet service that intermittently drops offline. I called Netgear when I this first happened at the time of purchase (modem is about...
Here is the event log from today where Ive had multiple connectivity drops. Showing the same type of erros, mostly T3 and T4 timeouts. I dont know enough if this is a model or ISP issue. Like I mentioned earlier, the first sign of this about 6 months ago I had comcase come out here but they basically said everything in the line looks good. I didnt have any of the below informaiton to give them at the time though.
| Time | Priority | Description |
| 2022-3-11, 01:13:17 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:09:11:a0;CMTS-MAC=00:90:f0:56:00:00;CM-QOS=1.1;CM-VER=3.0; |
| 2022-3-11, 01:14:21 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:09:11:a0;CMTS-MAC=00:90:f0:56:00:00;CM-QOS=1.1;CM-VER=3.0; |
| 2022-3-11, 01:15:28 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:09:11:a0;CMTS-MAC=00:90:f0:56:00:00;CM-QOS=1.1;CM-VER=3.0; |
| 2022-3-11, 07:15:36 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:09:11:a0;CMTS-MAC=00:90:f0:56:00:00;CM-QOS=1.1;CM-VER=3.0; |
| 2022-3-11, 07:16:41 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:09:11:a0;CMTS-MAC=00:90:f0:56:00:00;CM-QOS=1.1;CM-VER=3.0; |
| 2022-3-11, 07:17:42 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:09:11:a0;CMTS-MAC=00:90:f0:56:00:00;CM-QOS=1.1;CM-VER=3.0; |
| 2022-3-11, 08:05:09 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:09:11:a0;CMTS-MAC=00:90:f0:56:00:00;CM-QOS=1.1;CM-VER=3.0; |
| 2022-3-11, 08:56:54 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:09:11:a0;CMTS-MAC=00:90:f0:56:00:00;CM-QOS=1.1;CM-VER=3.0; |
| 2022-3-11, 08:57:04 | Critical (3) | No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=80:cc:9c:09:11:a0;CMTS-MAC=00:90:f0:56:00:00;CM-QOS=1.1;CM-VER=3.0; |
| 2022-3-11, 08:57:36 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:09:11:a0;CMTS-MAC=00:90:f0:56:00:00;CM-QOS=1.1;CM-VER=3.0; |
| 2022-3-11, 13:12:15 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:09:11:a0;CMTS-MAC=00:90:f0:56:00:00;CM-QOS=1.1;CM-VER=3.0; |
| 2022-3-11, 13:29:51 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:09:11:a0;CMTS-MAC=00:90:f0:56:00:00;CM-QOS=1.0;CM-VER=3.0; |
| 2022-3-11, 13:30:09 | Notice (6) | Honoring MDD; IP provisioning mode = IPv6 |
| 2022-3-11, 13:30:46 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:09:11:a0;CMTS-MAC=00:90:f0:56:00:00;CM-QOS=1.1;CM-VER=3.0; |
those errors are all line issues.
Does it totally rule out the modem being the issue? No. could be something internal to the modem causing a connection issue.
but they tend to indicate the line being the problem.
Thanks plemans for the help and revewing my info. Im going to call comcast, with the event log info and see if I can get anywhere with them.
much appreciated