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Modem T3 time-out at the same time every day

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Modem T3 time-out at the same time every day

For the past few months there have been repeated T3 time-outs that correspond to losing internet access for about 5 minutes each time.

 

I have tried rebooting the modem and resetting the modem to factory settings but it hasn't helped.

 

The modem is Netgear CM400.

 

Below are the stats.

 
Procedure Status Comment
Acquire Downstream Channel 669000000 Hz Locked
Connectivity State Ok Operational
Boot State Ok Operational
Security Enabled BPI+
IP Provisioning Mode Honor MDD honorMdd(4)

Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables UnCorrectables
1 Locked QAM 256 29 627000000 Hz 13.4 dBmV 36.3 dB 13 715
2 Locked QAM 256 30 633000000 Hz 13.4 dBmV 36.8 dB 0 489
3 Locked QAM 256 31 639000000 Hz 13.8 dBmV 37.0 dB 0 1284
4 Locked QAM 256 32 645000000 Hz 14.2 dBmV 38.2 dB 0 487
5 Locked QAM 256 34 651000000 Hz 13.5 dBmV 38.2 dB 14 613
6 Locked QAM 256 35 657000000 Hz 14.4 dBmV 38.9 dB 46 675
7 Locked QAM 256 36 663000000 Hz 13.4 dBmV 38.2 dB 15 1688
8 Locked QAM 256 37 669000000 Hz 13.2 dBmV 37.9 dB 15 1428

Upstream Bonded Channels (Partial Service)
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 3 5120 Ksym/sec 23800000 Hz 45.5 dBmV
2 Locked ATDMA 2 5120 Ksym/sec 30200000 Hz 45.5 dBmV
3 Locked ATDMA 1 5120 Ksym/sec 37200000 Hz 45.5 dBmV
4 Not Locked N/A Unknown 0 Ksym/sec 0 Hz 37.3 dBmV

 

Below are some of the modem logs.

Time Priority Description
Aug 29 13:55:19 2019 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
Aug 29 13:55:42 2019 Critical (3) No Ranging Response received - T3 time-out
Aug 29 13:55:58 2019 Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Aug 29 14:33:32 2019 Critical (3) No Ranging Response received - T3 time-out
Aug 29 14:34:16 2019 Critical (3) Ranging Request Retries exhausted
Aug 29 14:34:16 2019 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 29 14:34:40 2019 Critical (3) No Ranging Response received - T3 time-out
Aug 29 14:39:04 2019 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
Aug 29 14:39:30 2019 Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Aug 29 14:59:21 2019 Critical (3) No Ranging Response received - T3 time-out
Aug 29 15:00:05 2019 Critical (3) Ranging Request Retries exhausted
Aug 29 15:00:05 2019 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 29 15:00:06 2019 Critical (3) No Ranging Response received - T3 time-out
Aug 29 15:00:40 2019 Critical (3) Ranging Request Retries exhausted
Aug 29 15:00:40 2019 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 29 15:00:40 2019 Critical (3) No Ranging Response received - T3 time-out
Aug 29 15:04:43 2019 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
Aug 29 15:05:18 2019 Critical (3) No Ranging Response received - T3 time-out
Aug 29 15:05:44 2019 Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Aug 29 21:20:39 2019 Critical (3) No Ranging Response received - T3 time-out
Aug 30 10:57:22 2019 Critical (3) Ranging Request Retries exhausted
Aug 30 10:57:22 2019 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 30 12:25:35 2019 Critical (3) No Ranging Response received - T3 time-out
Aug 30 12:28:16 2019 Critical (3) Ranging Request Retries exhausted
Aug 30 12:28:16 2019 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 30 12:28:17 2019 Critical (3) Ranging Request Retries exhausted
Aug 30 12:28:17 2019 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 30 12:28:40 2019 Critical (3) No Ranging Response received - T3 time-out
Aug 30 13:49:12 2019 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
Aug 30 13:49:35 2019 Critical (3) No Ranging Response received - T3 time-out
Aug 30 13:49:55 2019 Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Aug 30 14:14:38 2019 Critical (3) No Ranging Response received - T3 time-out
Aug 30 14:15:21 2019 Critical (3) Ranging Request Retries exhausted
Aug 30 14:15:21 2019 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 30 14:15:27 2019 Critical (3) No Ranging Response received - T3 time-out
Aug 30 14:16:11 2019 Critical (3) Ranging Request Retries exhausted
Aug 30 14:16:11 2019 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 30 14:16:11 2019 Critical (3) No Ranging Response received - T3 time-out
Aug 30 14:20:07 2019 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
Aug 30 14:20:44 2019 Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1