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exdirectory
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Packet loss both inbound and outbound

I have been suffering for a while with packet loss, i ended up setting up BQM and ping monitoring going out. The problem is in both directions.

I will post my hub stats here in the hope someone spots a problem... i rebooted my router within last 3 or 4 days...

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

12270000005.638256 qam12
22190000005.538256 qam11
32350000005.838256 qam13
42430000005.338256 qam14
52510000004.938256 qam15
62590000004.538256 qam16
72670000004.638256 qam17
8275000000538256 qam18
92830000006.138256 qam19
10291000000738256 qam20
112990000007.438256 qam21
12307000000738256 qam22
133150000007.438256 qam23
143230000007.540256 qam24
154110000006.938256 qam25
164190000006.638256 qam26
174270000006.938256 qam27
184350000007.338256 qam28
194430000007.338256 qam29
204510000007.138256 qam30
214590000007.538256 qam31
224670000007.438256 qam32
234750000007.338256 qam33
244830000007.438256 qam34

 

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

1Locked38.9820
2Locked38.6910
3Locked38.91230
4Locked38.92410
5Locked38.92840
6Locked38.93360
7Locked38.63340
8Locked38.62830
9Locked38.61720
10Locked38.91290
11Locked38.61410
12Locked38.91620
13Locked38.91380
14Locked40.31430
15Locked38.66140
16Locked38.96120
17Locked38.97121
18Locked38.96980
19Locked38.97060
20Locked38.98160
21Locked38.976514
22Locked38.99330
23Locked38.98170
24Locked38.912040

 

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

1394000004.525512064 qam4
2462000004.5512064 qam3
3326000984.525512064 qam5
4257999764.525512064 qam6

 

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000

 

And finally my bqm from today

 

https://www.thinkbroadband.com/broadband/monitoring/quality/share/ce5297bc63bf9f8c468c9313638932d9b2...

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Z92
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Re: Packet loss both inbound and outbound

Your hub stats look fine, have you checked for issues in your local area? 

I had a worse BQM than you and within a few weeks the problem was sorted so I assumed it was a problem at the local cabinet. 

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exdirectory
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Re: Packet loss both inbound and outbound

Overnight I got this...

15/10/2020 01:05:48Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/10/2020 01:05:47criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/10/2020 00:58:8ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/10/2020 00:27:33criticalReceived 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;
15/10/2020 00:22:39Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/10/2020 00:22:35Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/10/2020 00:22:35criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/10/2020 00:22:35Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/10/2020 00:22:35criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/10/2020 00:22:34Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

And my errors now look like this...

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

1Locked38.91071429
2Locked38.91679410
3Locked38.91130707
4Locked38.6541710
5Locked38.9431678
6Locked38.9432680
7Locked38.6429700
8Locked38.9392745
9Locked38.9400761
10Locked38.9353703
11Locked38.6549562
12Locked38.9634720
13Locked38.9827618
14Locked40.311471623
15Locked38.92987816
16Locked38.93550493
17Locked38.64405741
18Locked38.94925763
19Locked40.354171509
20Locked38.96313822
21Locked40.37301940
22Locked38.99313739
23Locked38.911566702
24Locked40.313780768

 

"Re: have you checked for issues in your local area?"

I have had ongoing problems since March! I called VM technical and they checked my line and said it was fine, no reason to send anyone out for further checks.

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Adduxi
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Re: Packet loss both inbound and outbound

Two things VM should pick up.

1 - There should be no "red fringing" on your BQM, that's packet loss.

2 - They should be concerned about the PostRS errors, these should be 0 or very low.  Normally a sign of noise on the circuit.

An engineer should be able to sort this out.

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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exdirectory
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Re: Packet loss both inbound and outbound

That is great help, thank you, last time I was on the phone for about 2 hours to VM support so is there a chance a forum team member will pick this up and arrange an engineer? I would rather not have to call in again!

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exdirectory
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Re: Packet loss both inbound and outbound

Should I call to arrange for an engineer?

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