Modem MB8600 Error Logs

[vfd323]

Good evening, 

I keep restarting my modem and seeing event logs and was curious if anyone knew what they mean & possible repairs to clear these up

Channel Lock Status Modulation Channel ID Freq. (MHz) Pwr (dBmV) SNR (dB) Corrected Uncorrected    1 Locked QAM256 32 561.0 0.8 42.5 0 0    2 Locked QAM256 1 369.0 4.2 44.4 0 0    3 Locked QAM256 2 375.0 4.1 44.2 0 0    4 Locked QAM256 3 381.0 4.0 44.2 0 0    5 Locked QAM256 4 387.0 3.9 44.1 0 0    6 Locked QAM256 5 393.0 4.0 44.2 0 0    7 Locked QAM256 6 399.0 3.8 44.1 0 0    8 Locked QAM256 7 405.0 3.6 44.1 0 0    9 Locked QAM256 8 411.0 3.3 43.9 0 0    10 Locked QAM256 9 417.0 3.3 44.0 0 0    11 Locked QAM256 10 423.0 3.2 43.8 0 0    12 Locked QAM256 11 429.0 3.5 43.9 0 0    13 Locked QAM256 12 435.0 3.5 44.1 0 0    14 Locked QAM256 13 441.0 3.3 43.9 0 0    15 Locked QAM256 14 447.0 3.1 43.7 0 0    16 Locked QAM256 15 453.0 3.3 43.7 0 0    17 Locked QAM256 16 459.0 3.2 43.7 0 0    18 Locked QAM256 17 465.0 3.1 43.5 0 0    19 Locked QAM256 18 471.0 2.9 43.3 0 0    20 Locked QAM256 19 477.0 3.0 43.6 0 0    21 Locked QAM256 20 483.0 3.1 43.7 0 0    22 Locked QAM256 21 489.0 3.0 43.5 0 0    23 Locked QAM256 22 495.0 2.7 43.3 0 0    24 Locked QAM256 23 507.0 2.6 43.4 0 0    25 Locked QAM256 24 513.0 2.3 43.6 0 0    26 Locked QAM256 25 519.0 2.0 43.3 0 0    27 Locked QAM256 26 525.0 2.0 43.3 0 0    28 Locked QAM256 28 537.0 1.7 43.2 0 0    29 Locked QAM256 29 543.0 1.3 42.9 0 0    30 Locked QAM256 30 549.0 1.1 42.8 0 0    31 Locked QAM256 31 555.0 1.0 42.8 0 0    32 Locked OFDM PLC 33 589.0 0.9 42.0 525 0

[vfd323]

Error Logs

Event Log

Priority    Description  Critical (3)   SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:6f:6c:21;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; Critical (3)   No Ranging Response received - T3 time-out;CM-MAC=00:40:36:6f:6c:21;CMTS-MAC=00:01:5c:8f:14:4e;CM-QOS=1.1;CM-VER=3.1; Notice (6)   Honoring MDD; IP provisioning mode = IPv6 Notice (6)   DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=00:40:36:6f:6c:21;CMTS-MAC=00:01:5c:8f:14:4e;CM-QOS=1.1;CM-VER=3.1;

[EG]

Those are o/k. Please also post the upstream stats and the balance of the error log entries in their entirety.

[vfd323]

Channel	Lock Status	Channel Type	Channel ID	Symb. Rate (Ksym/sec)	Freq. (MHz)	Pwr (dBmV)
1	Locked	SC-QAM	6	5120	35.6	45.0
2	Locked	SC-QAM	7	5120	29.2	45.3
3	Locked	SC-QAM	8	5120	22.8	46.0
4	Locked	SC-QAM	9	5120	16.4	46.8
5	Locked	SC-QAM	10	1280	39.6	45.3

[vfd323]

	Time		Priority		Description
	Time Not Established		Critical (3)		SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:6f:6c:21;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
	Time Not Established		Critical (3)		No Ranging Response received - T3 time-out;CM-MAC=00:40:36:6f:6c:21;CMTS-MAC=00:01:5c:8f:14:4e;CM-QOS=1.1;CM-VER=3.1;
	Time Not Established		Notice (6)		Honoring MDD; IP provisioning mode = IPv6
	23:15:03 Sun Feb 7 2021		Notice (6)		DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=00:40:36:6f:6c:21;CMTS-MAC=00:01:5c:8f:14:4e;CM-QOS=1.1;CM-VER=3.1;
	01:02:54 Mon Feb 8 2021		Critical (3)		Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:6f:6c:21;CMTS-MAC=00:01:5c:8f:14:4e;CM-QOS=1.1;CM-VER=3.1;

[EG]

The upstream stats are good as well. You stated this: "I keep restarting my modem and seeing event logs".

There will always be incidental errors that get logged during a modem boot up. It's the nature of the beast. 

I'm curious. Are you actually experiencing any connectivity problems, or are you just focusing on those error log entries ? If it is the latter, then don't sweat it.

[vfd323]

im getting speeds on ethernet connection of 600 on a gig speed tier and sometimes get minor disconnects that last about 10 seconds but the modem does not shut down

[EG]

That could be being caused by noise ingress into the lines somewhere and / or a capacity / traffic congestion issue on your local cable segment. Perhaps you should book a tech visit to investigate.

[vfd323]

ive had 3 tech visits and all they have done is put in a new splitter outside as i live in a apartment building, a noise filter on the inboard line from the hub box thats undeground and tested the amountof speed coming in & then say alls okay then leave but we are still getting slow speeds, each visit they tell me that 500 on a ethernet connection is standard on a gig plan as my modem is getting 120% of the signal thats coming in