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SYNC Timing Sync failure, disconnects, SNR ratio seems fine

llamatronic
Tuning in

Hello, 

Have a lot of SYNC Timing Synchronisation Failures turn up in my logs with the Internet basically stopping every 5-10 minutes and then recovering. Fine for streaming services with caching, useless for Teams meetings, Skype calls, and working from home. Logs and various details from upstream and downstream below, also have a ping log from ThinkBroadband that I'll try to post. The ping graph is interesting - the failures only seem to be happening when I'm actively using my connection. Oh btw, just to simply rule it out, can't be a wifi issue as my PC has a wired connection to the hub.

Network Log

Time Priority Description

04/12/2022 12:23:26Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 12:23:25criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 12:23:12Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 12:23:12criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 12:10:5Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 12:10:5criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 12:07:45Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 12:07:45criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 12:05:2Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 12:05:2criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 12:02:40Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 12:02:40criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 11:55:35Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 11:55:35criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 11:51:13Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 11:51:12criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 11:47:58Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 11:47:58criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 11:46:57Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/12/2022 11:46:57criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

Downstream bonded channels

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

12030000004.838256 qam9
2139000000137256 qam1
31470000002.438256 qam2
4155000000338256 qam3
51630000004.138256 qam4
61710000004.138256 qam5
71790000005.138256 qam6
81870000005.138256 qam7
91950000004.338256 qam8
102110000004.638256 qam10
112190000004.538256 qam11
122270000005.638256 qam12
132350000005.138256 qam13
142430000005.438256 qam14
152510000006.438256 qam15
162590000005.538256 qam16
172670000005.638256 qam17
182750000006.438256 qam18
192830000004.438256 qam19
20291000000638256 qam20
21299000000738256 qam21
223070000005.438256 qam22
233150000007.438256 qam23
243230000007.638256 qam24



Downstream bonded channels

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

1Locked38.927066074987453
2Locked37.3359647010568443
3Locked38.636235588803746
4Locked38.632744618279821
5Locked38.635282156872555
6Locked38.635761395741560
7Locked38.629249415196312
8Locked38.931056394803918
9Locked38.929929185335788
10Locked38.630739904904478
11Locked38.628268114420305
12Locked38.926167524271680
13Locked38.927634664218116
14Locked38.626542554267553
15Locked38.925281043778623
16Locked38.926370723258164
17Locked38.624778533553877
18Locked38.924660543497730
19Locked38.625839353662182
20Locked38.925322953577304
21Locked38.924975502972932
22Locked38.924647522469912
23Locked38.923332842248785
24Locked38.623514312019963
24 REPLIES 24

llamatronic
Tuning in

Upstream bonded channels

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

14960051239.3512032 qam4
24309987841512016 qam5
33660000040512032 qam6
43010000038512032 qam9
52359986138.8512016 qam10



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA00250
2ATDMA0080
3ATDMA0040
4ATDMA0070
5ATDMA001090

 

And my log:

whee.PNG

Any thoughts appreciated!

Alex_RM
Forum Team
Forum Team

Hi llamatronic,

Thanks for posting and welcome to our community 🙂

I'm sorry to hear you've been having some issues with the connection. 

I've had a look at things from our side and it looks like you're affected by an area SNR issue, the estimated fix date for this is 8th December,

If you're still experiencing a problem after this date please let us know.

Alex_Rm

Hello, 

Is the work ongoing? My broadband is unquestionably worse today.

worse.PNG

I don't really understand the Virgin status checking page. It flips between saying there are no problems in my area and then saying there are. Presumably this means it's still being worked on. 

oh.PNG

Thanks for coming back to us llamatronic, I have looked into this and can see that there is an SNR fault in your area, that has a current estimated fix time of 1.15pm on Friday 16th. I apologise for the ongoing issues and hope that we can get them resolved before the estimated time on Friday.

 

Kind Regards,

Steven_L

Thanks Steven, but I guess the solution continues to elude that team, as it's now the 21st and my broadband is still unusable for long Teams calls - I'm now just calling in on a normal phone and watching the video on my laptop in bursts when the broadband works.

I'm going to invest in a 4G/5G modem and checking my contract terms, as I'm not convinced this is getting fixed soon.

lt

Hi llamatronic, thanks for the message and sorry to hear that you are still being affected by SNR

The fault number is F010287727 and this is estimated to be resolved on the 30th December. 

Chris. 

Hello Chris, 

It's now the 31st, and while I'm not home my broadband monitor tells me this problem has persisted. Can you let me know when the new target date for resolution is, and could you clarify - is anyone actually looking at this, or is the fault just on a rolling deadline?

I'd also appreciate clarification on one point - I've discovered my contract is up for renewal in a few months. Obviously at this rate I won't be renewing as there seems little point in renewing a service that either can't be fixed, or simply won't be fixed for reasons that I can't entirely discern. Do I have to notify you formally on this point to prevent it renewing, and if so can you let me know what contact details to use.

Regards,

lt

Hi @llamatronic
 

The date is now the 7th January. We are sorry this has been delayed again. 

 

The estimated fix times can change dependant on the complexity of the fault. We do assure you we are working to fix this as soon as possible. 

 

If you do decide you don't wish to continue as our customer, you will need to contact the team to provide 30 days notice.

 

You can call the team to request this on 150 from a Virgin land line or 0345 454 1111 from any other line.

 

 

Vikki - Forum Team


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