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Checkov
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Latency Spikes, High Ping and Dropped Packets after downgrade to 200mb

I've been with virgin media for many years without issue.  I was running the 350mb package with no issues at all.  Ping fine, latency fine, etc, etc.

On the 8th July i changed my package to 200mb (to save money) and that is when things have gone wrong.  You can see the step change in quality on the BQM page on the 8th July @ approx 11.30.

8th July PQM

I've rebooted the hub and my router and it still having spikes and dropped packages.  

Todays - 18th July BQM

This is causing issues with gaming but more importantly my work skype/zoom/teams calls.  Can you please investigate?

 

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Checkov
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Re: Latency Spikes, High Ping and Dropped Packets after downgrade to 200mb

Download / Upload and Logs from Hub: -

Downstream bonded channels

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

12987500004.540256 qam21
21387500005.140256 qam1
31467500005.340256 qam2
41547500005.140256 qam3
51627500004.940256 qam4
61707500004.840256 qam5
71787500004.540256 qam6
81867500004.540256 qam7
91947500004.440256 qam8
102027500004.140256 qam9
11210750000440256 qam10
12218750000440256 qam11
13226750000440256 qam12
142347500003.940256 qam13
15242750000440256 qam14
162507500004.140256 qam15
172587500004.440256 qam16
182667500004.540256 qam17
192747500004.540256 qam18
202827500004.540256 qam19
212907500004.540256 qam20
223067500004.340256 qam22
233147500004.340256 qam23
243227500004.140256 qam24



Downstream bonded channels

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

1Locked40.320810
2Locked40.31154398
3Locked40.31097386
4Locked40.91059293
5Locked40.91055227
6Locked40.91027222
7Locked40.9913237
8Locked40.3805243
9Locked40.9796127
10Locked40.9709105
11Locked40.3625150
12Locked40.3633114
13Locked40.3554130
14Locked40.360743
15Locked40.352463
16Locked40.348829
17Locked40.33862
18Locked40.930615
19Locked40.922322
20Locked40.32018
21Locked40.920812
22Locked40.921512
23Locked40.92490
24Locked40.32753

 

Upstream bonded channels

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

1462000123.825512064 qam3
2394000043.825512064 qam4
3537000023.875512064 qam2
4602999913.925512064 qam1


Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000

 

 

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Checkov
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Re: Latency Spikes, High Ping and Dropped Packets after downgrade to 200mb

Network Log

Time Priority Description

18/07/2020 11:43:14noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/07/2020 11:42:37Warning!LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/07/2020 19:08:35criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/07/2020 16:00:2Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/07/2020 13:18:29criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/07/2020 22:51:58Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/07/2020 02:50:10criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/07/2020 18:13:43ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/07/2020 19:23:52criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/07/2020 18:36:50Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/07/2020 16:21:6criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/07/2020 15:57:29Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/07/2020 15:57:4criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/07/2020 15:06:59Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/07/2020 15:06:57criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/07/2020 15:06:17Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/07/2020 15:06:14criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/07/2020 14:36:21Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/07/2020 08:09:27criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
05/07/2020 17:39:43Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

 

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SCA1972
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Re: Latency Spikes, High Ping and Dropped Packets after downgrade to 200mb

@Checkov Your BQM image has been rejected as it contains your WAN IP address and this is against the forum rules, to protect your privacy.  If you use the share options on the BQM page you can add a link or embed an image of your graph without your IP address.

______________________
Scott

My setup: V6 TV box, M350 Fibre broadband with Hub 3 in modem mode connected to a Netgear R7000 router. Telewest/VM user since 2001.

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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Checkov
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Re: Latency Spikes, High Ping and Dropped Packets after downgrade to 200mb

done. 🙂
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Checkov
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Re: Latency Spikes, High Ping and Dropped Packets after downgrade to 200mb

Today's Graph

Still broken. Can anyone help? 

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Re: Latency Spikes, High Ping and Dropped Packets after downgrade to 200mb

Hi,

 

Thanks for coming back to us in our community, I am sorry you are still getting high ping and packet loss. I have had a look into this for you and cannot see any issues our end, all your levels are where they should be, I cannot see everything as your router is in modem mode, please put back in router mode so we can do further checks.

 

Regards

 

Paul..

 

 

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