CM400 constantly losing connection during large uploads

[Squelch]

I am on Cox using a CM400 with the latest (1.01.17) firmware. Whenever I do a large backup (uploading >1Gb of data) the modem loses the internet connection after a period of time - sometimes less than ten minutes, sometimes an hour or more. Here are my logs/data

Downstream Bonded Channels

Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables UnCorrectables 1 Locked QAM 256 17 879000000 Hz 0.9 dBmV 37.0 dB 11 543 2 Locked QAM 256 18 885000000 Hz 0.5 dBmV 37.0 dB 24 483 3 Locked QAM 256 19 891000000 Hz 0.8 dBmV 37.0 dB 34 1338 4 Locked QAM 256 20 897000000 Hz 1.0 dBmV 37.6 dB 35 608 5 Locked QAM 256 21 903000000 Hz 1.3 dBmV 36.6 dB 51 634 6 Locked QAM 256 22 909000000 Hz 1.3 dBmV 37.6 dB 67 634 7 Locked QAM 256 23 915000000 Hz 1.6 dBmV 37.9 dB 20 613 8 Locked QAM 256 24 921000000 Hz 1.6 dBmV 37.3 dB 30 624

Upstream Bonded Channels

Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power 1 Locked ATDMA 1 2560 Ksym/sec 18400000 Hz 43.0 dBmV 2 Locked ATDMA 2 5120 Ksym/sec 23300000 Hz 45.0 dBmV 3 Locked ATDMA 3 5120 Ksym/sec 29800000 Hz 45.0 dBmV 4 Locked ATDMA 4 5120 Ksym/sec 36300000 Hz 45.0 dBmV

Time	Priority	Description
Apr 2 21:54:13 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 2 21:54:13 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 2 21:54:13 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 2 21:54:13 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 2 21:54:13 2018	Notice (6)	TLV-11 - unrecognized OID
Time Not Established	Critical (3)	No Ranging Response received - T3 time-out
Apr 2 22:20:10 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 2 22:20:10 2018	Notice (6)	TLV-11 - unrecognized OID
Apr 3 07:46:02 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 07:46:03 2018	Notice (6)	TLV-11 - unrecognized OID
Apr 3 07:50:27 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 07:50:27 2018	Notice (6)	TLV-11 - unrecognized OID
Apr 3 08:48:27 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 08:48:27 2018	Notice (6)	TLV-11 - unrecognized OID
Time Not Established	Critical (3)	No Ranging Response received - T3 time-out
Apr 3 09:04:23 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 09:04:23 2018	Notice (6)	TLV-11 - unrecognized OID
Apr 3 09:20:28 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 09:20:28 2018	Notice (6)	TLV-11 - unrecognized OID
Apr 3 10:00:46 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 10:00:46 2018	Notice (6)	TLV-11 - unrecognized OID
Apr 3 10:06:31 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 10:06:31 2018	Notice (6)	TLV-11 - unrecognized OID
Apr 3 10:30:01 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 10:30:01 2018	Notice (6)	TLV-11 - unrecognized OID
Apr 3 11:07:57 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 11:07:57 2018	Notice (6)	TLV-11 - unrecognized OID
Apr 3 11:30:39 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 11:30:39 2018	Notice (6)	TLV-11 - unrecognized OID
Apr 3 11:34:52 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 11:34:52 2018	Notice (6)	TLV-11 - unrecognized OID
Time Not Established	Critical (3)	No Ranging Response received - T3 time-out
Apr 3 11:39:07 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 11:39:07 2018	Notice (6)	TLV-11 - unrecognized OID
Time Not Established	Critical (3)	No Ranging Response received - T3 time-out
Apr 3 11:55:43 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 11:55:43 2018	Notice (6)	TLV-11 - unrecognized OID
Time Not Established	Critical (3)	No Ranging Response received - T3 time-out
Apr 3 12:36:13 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 12:36:13 2018	Notice (6)	TLV-11 - unrecognized OID
Time Not Established	Critical (3)	No Ranging Response received - T3 time-out
Apr 3 13:42:46 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Apr 3 13:42:46 2018	Notice (6)	TLV-11 - unrecognized OID

[DarrenM]

Hello Squelch

I am seeing some T3 timeouts in your logs this typically is a issues with your cable company connection I would contact them and have a tech investigate your area.

DarrenM