Modem reboots daily, T3/T4 time-outs.

Question

My modem is rebooting every day at around the same hour, causing all my wifi and ethernet connections to drop. Log is not showing time-outs everyday but it is happening as I see all my devices disconnect at the same time. It takes a couple of minutes for everything to reconnect, or seconds if I manually turn off/on the modem.

The coax cable is tight and not damaged from what I can see. I've already manually reset the modem multiple times and the problem didn't go away.

DOWNSTREAM/UPSTREAM BONDED CHANNELS:

Downstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	UnCorrectables
1	Locked	QAM 256	29	141000000 Hz	4.0 dBmV	43.3 dB	103	0
2	Locked	QAM 256	33	165000000 Hz	4.4 dBmV	40.9 dB	59	0
3	Locked	QAM 256	34	171000000 Hz	4.4 dBmV	43.3 dB	65	0
4	Locked	QAM 256	35	177000000 Hz	4.5 dBmV	43.3 dB	42	0
5	Locked	QAM 256	36	183000000 Hz	4.5 dBmV	43.3 dB	34	0
6	Locked	QAM 256	38	195000000 Hz	4.6 dBmV	43.3 dB	27	0
7	Locked	QAM 256	39	201000000 Hz	4.5 dBmV	40.9 dB	23	0
8	Locked	QAM 256	40	207000000 Hz	4.6 dBmV	43.3 dB	15	0
9	Locked	QAM 256	41	213000000 Hz	4.5 dBmV	40.3 dB	21	0
10	Locked	QAM 256	42	219000000 Hz	4.6 dBmV	43.3 dB	24	0
11	Locked	QAM 256	43	225000000 Hz	4.8 dBmV	40.9 dB	9	0
12	Locked	QAM 256	44	231000000 Hz	4.6 dBmV	43.3 dB	18	0
13	Locked	QAM 256	45	237000000 Hz	4.5 dBmV	40.9 dB	17	0
14	Locked	QAM 256	46	243000000 Hz	4.6 dBmV	40.9 dB	13	0
15	Locked	QAM 256	47	249000000 Hz	4.5 dBmV	43.3 dB	12	0
16	Locked	QAM 256	13	807000000 Hz	2.7 dBmV	40.9 dB	2	0

Upstream Bonded Channels

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	1	5120 Ksym/sec	17600000 Hz	43.5 dBmV
2	Locked	ATDMA	2	5120 Ksym/sec	24000000 Hz	43.5 dBmV
3	Locked	ATDMA	3	5120 Ksym/sec	30400000 Hz	43.5 dBmV
4	Locked	ATDMA	4	5120 Ksym/sec	36800000 Hz	43.5 dBmV

EVENT LOG:

Sep 18 2023 08:57:46	Critical (3)	No Ranging Response received - T3 time-out
Sep 18 2023 08:57:39	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
Sep 18 2023 08:57:27	Notice (6)	TLV-11 - unrecognized OID
Sep 18 2023 08:57:27	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Sep 17 2023 22:30:22	Critical (3)	No Ranging Response received - T3 time-out
Sep 17 2023 22:30:09	Notice (6)	TLV-11 - unrecognized OID
Sep 17 2023 22:30:09	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Sep 16 2023 23:03:34	Critical (3)	No Ranging Response received - T3 time-out
Sep 16 2023 23:03:31	Notice (6)	TLV-11 - unrecognized OID
Sep 16 2023 23:03:31	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Sep 12 2023 12:50:02	Critical (3)	No Ranging Response received - T3 time-out
Sep 12 2023 09:58:13	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
Sep 12 2023 09:57:58	Notice (6)	TLV-11 - unrecognized OID
Sep 12 2023 09:57:58	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1

Allan · Answer

Hello. By any chance, do you have any splitters or signal amps on the cable line going to the modem?

Dgrewing2 · Answer

Our connection is going out every day as well. It's ridiculous!

Welcome to the Cox Community

Modem reboots daily, T3/T4 time-outs.

Jamza25

Allan

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