Loss of sync outages

[mrfwibble]

Last few days especially in the evening after 6pm getting very intermittent service on what was a very stable connection.

Have tried the usual, checked all cables, put them back in etc. Powered off Hub etc.

Currently in modem mode and has been since installed, connected to Linksys Velop Mesh WiFi.

We are on the 500Mb service. 

TV box working fine. 

Any help appreciated. 
David

Upstream bonded channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

1	23600000	54	5120	64 qam	5
2	30099969	54	5120	64 qam	4

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	ATDMA	0	0	6	9
2	ATDMA	0	0	0	0

Downstream bonded channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

1	331000000	3	40	256 qam	25
2	251000000	1.4	40	256 qam	15
3	259000000	1.7	38	256 qam	16
4	267000000	2	40	256 qam	17
5	275000000	2.2	40	256 qam	18
6	283000000	2.4	40	256 qam	19
7	291000000	2.7	40	256 qam	20
8	299000000	3	38	256 qam	21
9	307000000	3	40	256 qam	22
10	315000000	3	40	256 qam	23
11	323000000	3.2	38	256 qam	24
12	339000000	3.2	40	256 qam	26
13	347000000	3.2	40	256 qam	27
14	355000000	3.7	40	256 qam	28
15	363000000	3.9	40	256 qam	29
16	371000000	4.5	40	256 qam	30
17	379000000	4.9	40	256 qam	31
18	387000000	5.1	40	256 qam	32
19	395000000	5	40	256 qam	33
20	403000000	5.1	40	256 qam	34
21	411000000	4.8	40	256 qam	35
22	419000000	4	40	256 qam	36
23	427000000	3	40	256 qam	37
24	435000000	2.5	40	256 qam	38

Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors

1	Locked	40.9	460	95
2	Locked	40.3	667	88
3	Locked	38.9	642	56
4	Locked	40.3	616	52
5	Locked	40.3	586	43
6	Locked	40.3	567	102
7	Locked	40.3	522	55
8	Locked	38.9	495	34
9	Locked	40.3	465	127
10	Locked	40.3	459	41
11	Locked	38.9	449	41
12	Locked	40.3	418	42
13	Locked	40.3	391	53
14	Locked	40.3	348	50
15	Locked	40.3	304	26
16	Locked	40.9	294	16
17	Locked	40.3	260	20
18	Locked	40.9	249	13
19	Locked	40.3	244	11
20	Locked	40.3	225	4
21	Locked	40.9	202	13
22	Locked	40.3	211	14
23	Locked	40.3	269	10
24	Locked	40.3	270	1

[mrfwibble]

Forgot the logs, Hub was powered off at 8.30pm so I could check the cables etc. 

Network Log

Time Priority Description

17/01/2024 21:58:21	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 21:58:21	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 21:57:21	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 21:57:21	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 21:55:21	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 21:55:21	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 21:52:2	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 21:52:2	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 21:43:22	critical	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 21:42:22	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 21:42:21	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 21:16:4	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 21:16:4	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 21:06:20	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 20:49:32	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 20:49:32	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 20:47:47	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 20:47:46	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 20:46:56	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/01/2024 20:46:56	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

[mrfwibble]

Out of interest I just ran the virgin media service checker and while it reported no local issues it did say I need an engineer and I’ve one booked for Friday. Will update after Friday. 

[John_GS]

Hi @mrfwibble 

Thanks for posting and welcome back to the community.

Sorry to hear of the issues with your service. 

I can see from checking on the tech visit that they've replaced the hub and connections. I hope this has fixed everything but do let us know if you need further assistance.