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tomo8281
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Hub 3.0 SYNC Timing Synchronization failure and RCS Partial Service errors

Hi all, over the past month my Hub 3 router has become more and more unrealiable in terms of internet stability and latency. I have a Windows PC that is plugged directly into the router via Ethernet. I have the M200 Fibre Broadband package and have recently been getting around 15-50 Mbps:

There are other devices on my network but nothing downloading or causing other activity.

However my speeds are not the issue, it's the error log in my router status:

21/09/2021 19:55:49	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:55:48	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:54:47	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:53:47	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:52:1	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:59	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:58	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:58	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:58	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:38	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:38	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:37	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:37	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:36	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:36	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:34	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:34	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:33	Warning!	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:31	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2021 19:51:30	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

I get these Sync Timing Failure and RCS partial Service errors all day long, with random latency errors too and spikes. 

Here are my other router stats:

Downstream bonded channels
Channel	Frequency (Hz)	Power (dBmV)	SNR (dB)	Modulation	Channel ID
1	147000000	-0.9	40	256 qam	2
2	155000000	-0.5	40	256 qam	3
3	163000000	-0.5	38	256 qam	4
4	171000000	0.2	40	256 qam	5
5	179000000	0.4	40	256 qam	6
6	187000000	0.2	40	256 qam	7
7	195000000	0.4	40	256 qam	8
8	203000000	0	40	256 qam	9
9	211000000	-0.2	40	256 qam	10
10	219000000	-0.5	38	256 qam	11
11	227000000	-0.7	40	256 qam	12
12	235000000	-0.5	40	256 qam	13
13	243000000	-0.5	40	256 qam	14
14	251000000	-0.5	40	256 qam	15
15	259000000	-0.5	40	256 qam	16
16	267000000	-0.4	40	256 qam	17
17	275000000	-0.2	40	256 qam	18
18	283000000	0	40	256 qam	19
19	291000000	0	40	256 qam	20
20	299000000	0.2	40	256 qam	21
21	307000000	-0.2	40	256 qam	22
22	315000000	0	40	256 qam	23
23	323000000	0	40	256 qam	24


Downstream bonded channels
Channel	Locked Status	RxMER (dB)	Pre RS Errors	Post RS Errors
1	Locked	40.9	9160693	2708227
2	Locked	40.3	10183274	2721463
3	Locked	38.9	9723426	3643753
4	Locked	40.9	10402721	4277133
5	Locked	40.9	6116476	453848
6	Locked	40.9	9041255	1616879
7	Locked	40.9	9545870	2207988
8	Locked	40.3	7552805	889202
9	Locked	40.9	7917316	1056479
10	Locked	38.6	9966032	2902479
11	Locked	40.3	9491599	3204529
12	Locked	40.3	8455846	1399378
13	Locked	40.3	6804677	679626
14	Locked	40.9	5556183	370228
15	Locked	40.3	4701373	236543
16	Locked	40.3	3256033	87864
17	Locked	40.3	2113563	26129
18	Locked	40.3	2019493	24291
19	Locked	40.3	1388084	8015
20	Locked	40.3	951525	2134
21	Locked	40.3	1038150	3063
22	Locked	40.3	527011	255
23	Locked	40.9	132350	0


Upstream bonded channels
Channel	Frequency (Hz)	Power (dBmV)	Symbol Rate (ksps)	Modulation	Channel ID
1	60300000	51	5120	64 qam	1
2	39400000	51	5120	64 qam	4
3	53700000	51	5120	64 qam	2
4	46200010	51	5120	64 qam	3


Upstream bonded channels
Channel	Channel Type	T1 Timeouts	T2 Timeouts	T3 Timeouts	T4 Timeouts
1	ATDMA	0	0	5	0
2	ATDMA	0	0	34	0
3	ATDMA	0	0	12	0
4	ATDMA	0	0	11	0

 

Can VM please help, can I get an engine out to look at these issues? I've called 0800 561 0061 and there are no service issues in my area either. I've also hard reset my router and I still get the errors.

Thanks a lot for any help.

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Tudor
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Re: Hub 3.0 SYNC Timing Synchronization failure and RCS Partial Service errors

Too many downstream Pre & Post RS error, all upstream have too high power and lots of T3. These figures are accumulative so you cannot tell if they are recent or not. So please power cycle your hub and it will reset the counters. Then after a few hours post a new set of stats so we can get up to date figures. Also check for local faults. 

Check with Area faults on  0800 561 0061 or if you have a VM landline 150


Tudor
There are 10 types of people: those who understand binary and those who don't and F people out of 10 who do not understand hexadecimal c1a2a285948293859940d9a49385a2
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John_GS
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Re: Hub 3.0 SYNC Timing Synchronization failure and RCS Partial Service errors

Hi tomo8281

 

Thanks for posting and welcome to the community.

 

Apologies for the broadband issues. It does need a tech due to the upstream, so will send a PM now.

 

Best,

John_GS
Forum Team


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tomo8281
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Re: Hub 3.0 SYNC Timing Synchronization failure and RCS Partial Service errors

Hi - thanks so much for the help Tudor.

I power cycled my router (unplugged completely for 1-2 mins) and then left my internet on while I worked for a few hours. Here is the new status logs:

Cable Modem Status
Item	Status	Comments
Acquired Downstream Channel (Hz)	
139000000
Locked
Ranged Upstream Channel (Hz)	
60300000
Locked
Provisioning State	
Online

Downstream bonded channels
Channel	Frequency (Hz)	Power (dBmV)	SNR (dB)	Modulation	Channel ID
1	139000000	-1.4	38	256 qam	1
2	147000000	-1.2	40	256 qam	2
3	155000000	-0.9	40	256 qam	3
4	163000000	-1	40	256 qam	4
5	171000000	-0.2	40	256 qam	5
6	179000000	0	40	256 qam	6
7	187000000	-0.2	40	256 qam	7
8	195000000	0	40	256 qam	8
9	203000000	-0.4	40	256 qam	9
10	211000000	-0.5	40	256 qam	10
11	219000000	-0.9	38	256 qam	11
12	227000000	-1	40	256 qam	12
13	235000000	-1	40	256 qam	13
14	243000000	-1	40	256 qam	14
15	251000000	-0.7	40	256 qam	15
16	259000000	-0.9	40	256 qam	16
17	267000000	-0.7	40	256 qam	17
18	275000000	-0.9	40	256 qam	18
19	283000000	-0.4	40	256 qam	19
20	291000000	-0.2	40	256 qam	20
21	299000000	-0.2	40	256 qam	21
22	307000000	-0.5	40	256 qam	22
23	315000000	-0.4	40	256 qam	23
24	323000000	-0.5	40	256 qam	24


Downstream bonded channels
Channel	Locked Status	RxMER (dB)	Pre RS Errors	Post RS Errors
1	Locked	38.9	689649	299
2	Locked	40.9	519957	40
3	Locked	40.3	534302	75
4	Locked	40.3	507021	68
5	Locked	40.9	240939	0
6	Locked	40.9	100794	0
7	Locked	40.3	122254	0
8	Locked	40.3	144323	0
9	Locked	40.3	99869	0
10	Locked	40.3	93662	0
11	Locked	38.9	128871	0
12	Locked	40.3	133843	0
13	Locked	40.9	100612	0
14	Locked	40.3	74014	0
15	Locked	40.3	60539	0
16	Locked	40.3	49068	0
17	Locked	40.9	38916	0
18	Locked	40.3	28995	0
19	Locked	40.3	24167	0
20	Locked	40.3	21493	0
21	Locked	40.3	14130	0
22	Locked	40.3	15258	0
23	Locked	40.3	10538	0
24	Locked	40.9	4908	0

Upstream bonded channels
Channel	Frequency (Hz)	Power (dBmV)	Symbol Rate (ksps)	Modulation	Channel ID
1	60300000	51	5120	64 qam	1
2	39400000	51	5120	64 qam	4
3	53700000	51	5120	64 qam	2
4	46200000	51	5120	64 qam	3


Upstream bonded channels
Channel	Channel Type	T1 Timeouts	T2 Timeouts	T3 Timeouts	T4 Timeouts
1	ATDMA	0	0	0	0
2	ATDMA	0	0	0	0
3	ATDMA	0	0	0	0
4	ATDMA	0	0	0	0

General Configuration
Network access	
Allowed
Maximum Number of CPEs	
1
Baseline Privacy	
Enabled
DOCSIS Mode	
Docsis30
Config file	
cmreg-vmdg505-bbt060+voc-b.cm


Primary Downstream Service Flow
SFID	261334
Max Traffic Rate	230000061
Max Traffic Burst	42600
Min Traffic Rate	0


Primary Upstream Service Flow
SFID	261333
Max Traffic Rate	22000061
Max Traffic Burst	42600
Min Traffic Rate	0
Max Concatenated Burst	42600
Scheduling Type	BestEffort

Network Log
Time	Priority	Description
24/09/2021 01:57:25	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 23:48:37	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 22:47:6	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 20:25:3	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 19:12:52	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:37:17	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:37:14	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:37:14	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:37:14	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:37:14	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:37:13	Warning!	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:37:13	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:37:12	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:36:47	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:36:35	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:36:35	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:36:33	Warning!	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:36:33	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:36:32	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/09/2021 18:36:32	Warning!	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

Thanks again for the help.

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tomo8281
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Re: Hub 3.0 SYNC Timing Synchronization failure and RCS Partial Service errors

Thanks - just replied.

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John_GS
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Re: Hub 3.0 SYNC Timing Synchronization failure and RCS Partial Service errors

Hi tomo8281,

 

Thanks for joining me on PM.

 

Just to update the thread, the tech visit was booked in.

 

This can be tracked and/or altered here

 

Let us know how the visit goes.

 

Best,

John_GS
Forum Team


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tomo8281
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Re: Hub 3.0 SYNC Timing Synchronization failure and RCS Partial Service errors

Hi,

Just want to follow up on this. The Engineer came round and was amazing, really great. Turns out one of the male plugs from the VM box in our flat to the router actually had a massively recessed pin so it was barely making contact. He fixed that and the router got a lot more stable.

However the router is still showing errors. I power cycled my hub last night, is it possible for someone to advise? We are still getting a bit slow speeds.

Network Log
Time	Priority	Description
07/10/2021 12:40:43	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:6	Warning!	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:4	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:4	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:2	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:2	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:1	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:1	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:1	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/10/2021 05:10:39	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/10/2021 04:51:59	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
05/10/2021 14:57:3	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/10/2021 18:02:50	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/10/2021 02:57:3	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/09/2021 01:49:51	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/09/2021 21:51:51	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/09/2021 19:41:11	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/09/2021 14:52:30	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/09/2021 10:04:9	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/09/2021 05:38:9	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

Upstream bonded channels
Channel	Frequency (Hz)	Power (dBmV)	Symbol Rate (ksps)	Modulation	Channel ID
1	60300263	51	5120	64 qam	1
2	39400000	51	5120	64 qam	4
3	53700258	51	5120	64 qam	2
4	46199990	51	5120	64 qam	3


Upstream bonded channels
Channel	Channel Type	T1 Timeouts	T2 Timeouts	T3 Timeouts	T4 Timeouts
1	ATDMA	0	0	0	0
2	ATDMA	0	0	0	0
3	ATDMA	0	0	0	0
4	ATDMA	0	0	0	0

Downstream bonded channels
Channel	Frequency (Hz)	Power (dBmV)	SNR (dB)	Modulation	Channel ID
1	139000000	-0.4	38	256 qam	1
2	147000000	0.2	40	256 qam	2
3	155000000	0.5	40	256 qam	3
4	163000000	0.9	40	256 qam	4
5	171000000	1.2	40	256 qam	5
6	179000000	1	40	256 qam	6
7	187000000	1.2	40	256 qam	7
8	195000000	0.9	40	256 qam	8
9	203000000	0.7	40	256 qam	9
10	211000000	0.5	40	256 qam	10
11	219000000	0.5	39	256 qam	11
12	227000000	0	40	256 qam	12
13	235000000	-0.2	40	256 qam	13
14	243000000	-0.2	40	256 qam	14
15	251000000	0	40	256 qam	15
16	259000000	0.4	40	256 qam	16
17	267000000	0.7	40	256 qam	17
18	275000000	0.7	40	256 qam	18
19	283000000	0.7	40	256 qam	19
20	291000000	0.7	40	256 qam	20
21	299000000	1	40	256 qam	21
22	307000000	0.7	40	256 qam	22
23	315000000	1	40	256 qam	23
24	323000000	1	40	256 qam	24


Downstream bonded channels
Channel	Locked Status	RxMER (dB)	Pre RS Errors	Post RS Errors
1	Locked	38.9	3018149	39
2	Locked	40.3	2751023	28
3	Locked	40.3	2671997	22
4	Locked	40.3	1351597	60
5	Locked	40.3	384477	0
6	Locked	40.3	703917	0
7	Locked	40.3	898851	0
8	Locked	40.9	677515	0
9	Locked	40.3	567292	21
10	Locked	40.3	731598	0
11	Locked	39.8	636701	9
12	Locked	40.3	565957	14
13	Locked	40.9	427643	9
14	Locked	40.9	357924	11
15	Locked	40.3	213211	1
16	Locked	40.9	117465	5
17	Locked	40.9	93634	36
18	Locked	40.9	71273	16
19	Locked	40.3	47234	5
20	Locked	40.3	50584	42
21	Locked	40.3	36049	46
22	Locked	40.9	7573	47
23	Locked	40.9	3694	30
24	Locked	40.9	6799	61

Is it possible someone can check these? Really appreciate it thanks!

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Andrew-G
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Very Insightful Person
Very Insightful Person
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Message 8 of 17
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Re: Hub 3.0 SYNC Timing Synchronization failure and RCS Partial Service errors

Clearly there's still an underlying noise fault, and you'll need a technician out again.  You can try phoning it in, but in your shoes I'd wait for the forum staff to take a look and advise.  Dealing with the forum staff is a far more civilised option than VM's telephone support, which often seems to be inspired by the work of Franz Kafka, and to intentionally merge the worst elements of RyanAir, Aeroflot, and the North Korean State Customer Service Bureau. 

If you're interested in what the log entries mean, there's some reading here.

 

I'm a Very Insightful Person, I'm here to share knowledge, I don't work for Virgin Media. Learn more

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Lee_R
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Message 9 of 17
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Re: Hub 3.0 SYNC Timing Synchronization failure and RCS Partial Service errors

Hi @tomo8281 thanks for coming back to us.

I am really sorry to hear of the ongoing issues with the service errors.  I have had a look at your account from here.  Can you please confirm that nothing has changed since you last posted?

Regards

 

Lee_R

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tomo8281
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Message 10 of 17
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Re: Hub 3.0 SYNC Timing Synchronization failure and RCS Partial Service errors

Hi - sorry for taking a few days to get back to you. Nothing has changed since I last posted however, this morning I did a power cycle for quite a bit of time to get you fresh results which you can see below:

Network Log
Time	Priority	Description
13/10/2021 04:12:1	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/10/2021 02:12:38	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/10/2021 10:00:9	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/10/2021 22:57:3	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/10/2021 21:41:32	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2021 04:26:59	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 12:40:43	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:6	Warning!	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:4	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:4	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:2	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:2	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:1	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:1	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/10/2021 10:37:1	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/10/2021 05:10:39	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/10/2021 04:51:59	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
05/10/2021 14:57:3	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/10/2021 18:02:50	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/10/2021 02:57:3	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

Upstream bonded channels
Channel	Frequency (Hz)	Power (dBmV)	Symbol Rate (ksps)	Modulation	Channel ID
1	60300258	51	5120	64 qam	1
2	39400263	51	5120	64 qam	4
3	53700258	51	5120	64 qam	2
4	46200322	51	5120	64 qam	3


Upstream bonded channels
Channel	Channel Type	T1 Timeouts	T2 Timeouts	T3 Timeouts	T4 Timeouts
1	ATDMA	0	0	0	0
2	ATDMA	0	0	0	0
3	ATDMA	0	0	0	0
4	ATDMA	0	0	0	0

Downstream bonded channels
Channel	Frequency (Hz)	Power (dBmV)	SNR (dB)	Modulation	Channel ID
1	139000000	-0.4	38	256 qam	1
2	147000000	0.2	40	256 qam	2
3	155000000	0.5	40	256 qam	3
4	163000000	0.7	40	256 qam	4
5	171000000	1.2	40	256 qam	5
6	179000000	1	40	256 qam	6
7	187000000	1.2	40	256 qam	7
8	195000000	1	40	256 qam	8
9	203000000	0.7	40	256 qam	9
10	211000000	0.5	40	256 qam	10
11	219000000	0.4	40	256 qam	11
12	227000000	0	40	256 qam	12
13	235000000	0	40	256 qam	13
14	243000000	-0.2	40	256 qam	14
15	251000000	0	40	256 qam	15
16	259000000	0.2	40	256 qam	16
17	267000000	0.7	40	256 qam	17
18	275000000	0.5	40	256 qam	18
19	283000000	0.7	40	256 qam	19
20	291000000	0.7	40	256 qam	20
21	299000000	1	40	256 qam	21
22	307000000	0.5	40	256 qam	22
23	315000000	0.9	40	256 qam	23
24	323000000	1	40	256 qam	24


Downstream bonded channels
Channel	Locked Status	RxMER (dB)	Pre RS Errors	Post RS Errors
1	Locked	38.9	656778	8
2	Locked	40.3	556269	1
3	Locked	40.3	558383	5
4	Locked	40.9	352002	0
5	Locked	40.3	131849	0
6	Locked	40.3	129190	0
7	Locked	40.3	217046	0
8	Locked	40.9	184558	0
9	Locked	40.9	137565	0
10	Locked	40.3	179609	0
11	Locked	40.3	169242	0
12	Locked	40.3	161974	0
13	Locked	40.3	122658	0
14	Locked	40.9	115562	0
15	Locked	40.3	76063	0
16	Locked	40.3	50025	0
17	Locked	40.3	35866	0
18	Locked	40.3	30999	0
19	Locked	40.9	24078	0
20	Locked	40.3	19607	0
21	Locked	40.3	22222	0
22	Locked	40.3	8878	0
23	Locked	40.3	2383	0
24	Locked	40.3	2957	0

 

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