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BQM for the forum experts to view

roodles
On our wavelength

I am currently arranging a technician vist but in the meantime, I'm curious from a technical perspective, what could cause such a swings on the BQM:

BQM 

I only started the BQM as I was getting dropouts and stuttering on voip & video calls.

Forum sleuths, place your bets on the cause 😬

P.s. no faults found via usual first steps, phone and web service, physical connections etc

My Broadband Ping - Virgin media gig1
18 REPLIES 18

Client62
Legend

it would be helpful to see the stats from the Hub's Upstream and Downstream tabs.
Copy / paste the text into the thread.   ( Screen shots are difficult to read )

roodles
On our wavelength

Thank you, here it is:

Upstream bonded channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
14960000047.5512064 qam1
22360000046512064 qam5
33010000046512064 qam4
43660000447512064 qam3
54310000047512064 qam2


Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000
5ATDMA0000

 

General Configuration

Network access
Allowed
Maximum Number of CPEs
1
Baseline Privacy
Enabled
DOCSIS Mode
Docsis30
Config file
54k;fg87dsfd;kfoA,.iyewrk


Primary Downstream Service Flow

SFID709
Max Traffic Rate287500061
Max Traffic Burst42600
Min Traffic Rate0


Primary Upstream Service Flow

SFID708
Max Traffic Rate27500061
Max Traffic Burst42600
Min Traffic Rate0
Max Concatenated Burst42600
Scheduling TypeBestEffort




My Broadband Ping - Virgin media gig1

roodles
On our wavelength

Downstream bonded channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
13310000002.940256 qam25
22030000003.540256 qam9
32110000003.540256 qam10
42190000003.240256 qam11
52270000002.940256 qam12
62350000002.740256 qam13
72430000002.240256 qam14
82510000001.740256 qam15
92590000001.740256 qam16
102670000002.240256 qam17
112750000002.540256 qam18
122830000002.740256 qam19
132910000002.940256 qam20
14299000000340256 qam21
153070000003.240256 qam22
163150000003.240256 qam23
173230000003.440256 qam24
183390000002.940256 qam26
19347000000340256 qam27
203550000003.240256 qam28
213630000003.440256 qam29
22371000000340256 qam30
233790000002.540256 qam31
243870000002.240256 qam32


Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1Locked40.9270
2Locked40.370
3Locked40.380
4Locked40.350
5Locked40.9170
6Locked40.380
7Locked40.3130
8Locked40.3110
9Locked40.9120
10Locked40.9160
11Locked40.3120
12Locked40.390
13Locked40.3140
14Locked40.3120
15Locked40.370
16Locked40.9210
17Locked40.9280
18Locked40.3190
19Locked40.3270
20Locked40.3220
21Locked40.990
22Locked40.3120
23Locked40.3100
24Locked40.970



My Broadband Ping - Virgin media gig1

roodles
On our wavelength

Network Log

Time Priority Description

21/07/2023 07:13:50noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/07/2023 07:05:44Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/07/2023 07:05:39Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/07/2023 07:05:39criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/07/2023 07:05:39Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/07/2023 07:05:39criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/07/2023 00:21:49Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/07/2023 22:16:4noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/07/2023 21:12:35Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/07/2023 18:05:46noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/07/2023 18:05:28Warning!LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/07/2023 18:04:54noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/07/2023 18:04:12Warning!LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:40criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/07/2023 17:53:22noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/07/2023 14:58:22criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/07/2023 12:35:39noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/07/2023 12:35:39ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/07/2023 11:31:35criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/07/2023 11:31:35Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
My Broadband Ping - Virgin media gig1

Cardiffman282
Super solver

Stats look good to me but clearly BQM is an issue. 

In a previous post you attributed similar issues to your VOIP setup. Could this still be the case here? 

CANCEL VM here: https://www.virginmedia.com/help/leaving


COMPLAIN to VM here: https://www.virginmedia.com/help/complaints


DEMAND COMPENSATION from VM here: https://www.virginmedia.com/help/billing-and-payments/automatic-compensation

DEMAND YOUR VM CALL RECORDINGS here https://www.virginmedia.com/help/dsar-faq

Thanks for looking at the data.

If it wasn't for voip, I wouldn't notice an issue.

Download / upload speeds are consistently slightly higher than advertised.

It only presents itself on voip - via occasional packet loss and high latency. I assume whatever it is, is very intermittent!

Cheers

My Broadband Ping - Virgin media gig1

Client62
Legend

Hub stats look fine to me too.

We have used Cisco VOIP kit at home from 2017 on 3 phone numbers.

Here is a bit of the stuff we have gleaned over the years ...

To avoid drop outs on the call - ensure each VOIP device / soft phone has a unique in bound SIP port number. Avoid in bound SIP traffic on default port 5060 as that is where the VM SIP ALG works for VM's phone service.

SIP Transport : UDP is the default for us - ( TCP is also possible and should avoid packet loss )

Configure the VOIP providers STUN server 

Prefer codec G.711a ( a-law ) to match BT's VOIP service and PSTN exchanges.

Configure an NTP servers on each VOIP Phone  e.g. time.windows.com  

jpeg1
Alessandro Volta

Your Hub data and BQM are much improved from your previous thread and you no longer have all that packet loss.

The latency spikes pushing past 160ms could well be the cause of your VOIP problems. It will be very interesting to see if the technician can do anything about this. 

- jpeg1
My name is NOT Alessandro. That's just a tag Virginmedia sticks on some contributors. Please ignore it.

roodles
On our wavelength

Thanks for those tips - I will sign in and see which ones I can implement.

Aside from SIP, I also use IAX2 on the default UDP port (4569).

I'll change all the ports away from default, it certainly can't hurt.

Many thanks, I'll make some changes and report back.

My Broadband Ping - Virgin media gig1