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Forum Discussion
Netgear CM600 No Internet
I've had my CM600 for a few years now and over the past few months I would just randomly disconnect from my Xfinity service. Normally a simple reboot would solve the problem. But tonight I think some...
Do you have a screen snip of the cable connections page and the event logs from the modem?
Since I've made this thread it hasn't done it, until yesterday.
Here's the log:
[quote]
Event Log
Clear Log Refresh
Time Priority Description
2021-07-30, 07:07:57 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:59 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:59 Critical (3) Ranging Request Retries exhausted;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:59 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:55 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:55 Critical (3) Ranging Request Retries exhausted;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:55 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:47 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:45 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:45 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:45 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:45 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:39 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:39 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:37 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:37 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:37 Critical (3) Ranging Request Retries exhausted;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:37 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:36 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:36 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:35 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:35 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:32 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:31 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:05:31 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:04:04 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:03:52 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:03:37 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:03:32 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:03:17 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:03:12 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:03:04 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:02:32 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:02:17 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:02:12 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:01:57 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
2021-07-30, 07:01:52 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.1;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Warning (5) B-INIT-RNG Failure - Retries exceeded;CM-MAC=b0:39:56:04:d2:f0;CMTS-MAC=00:9e:1e:59:17:1f;CM-QOS=1.0;CM-VER=3.0;[/quote]
Your event log is indicating a line issue. But you don't have the cable connections page attached. that lets us look at signal strengths and suggest things to try.
(next time get a screen snip . much easier to read)
Click on "choose file" and add them 1 as a time. When you insert a photo into the post, a moderator has to approve them and it can take a while