Virgin Media Community

[CaptiveAudience]

Due to general video call, gaming, YouTube quality issues I've set up the following BQM and it seems very "hairy" is this normal?

https://www.thinkbroadband.com/broadband/monitoring/quality/share/0b5d84e3cf42219d29e1f77ed2175a14297a887b

Speed tests all come back with about the right speeds.

[Adduxi]

Post the power levels and network logs from the Hub. That looks like overutilisation or noise.

[CaptiveAudience]

Downstream bonded channelsChannel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

1	203000000	4.3	40	256 qam	9
2	139000000	5.5	40	256 qam	1
3	147000000	5.8	40	256 qam	2
4	155000000	5.5	40	256 qam	3
5	163000000	5.5	40	256 qam	4
6	171000000	5.5	40	256 qam	5
7	179000000	4.9	40	256 qam	6
8	187000000	4.4	40	256 qam	7
9	195000000	4.3	40	256 qam	8
10	211000000	4.5	40	256 qam	10
11	219000000	4.5	40	256 qam	11
12	227000000	3.5	40	256 qam	12
13	235000000	2.7	40	256 qam	13
14	243000000	3	40	256 qam	14
15	251000000	3	40	256 qam	15
16	259000000	2.5	40	256 qam	16
17	267000000	3	40	256 qam	17
18	275000000	3.7	40	256 qam	18
19	283000000	4	40	256 qam	19
20	291000000	4.4	40	256 qam	20
21	299000000	4.5	40	256 qam	21
22	307000000	4.6	40	256 qam	22
23	315000000	4.9	40	256 qam	23
24	323000000	5	40	256 qam	24

Downstream bonded channelsChannel Locked Status RxMER (dB) Pre RS Errors Post RS Errors

1	Locked	40.9	3587	14843
2	Locked	40.3	3463	15593
3	Locked	40.3	3481	17061
4	Locked	40.3	4889	14691
5	Locked	40.9	4431	15438
6	Locked	40.9	3193	15851
7	Locked	40.3	5392	16360
8	Locked	40.3	3913	12870
9	Locked	40.9	4591	11372
10	Locked	40.9	3415	10564
11	Locked	40.9	3206	39812
12	Locked	40.3	3371	12739
13	Locked	40.3	3570	37110
14	Locked	40.9	3607	42989
15	Locked	40.9	3257	44718
16	Locked	40.3	3417	75174
17	Locked	40.3	3022	92382
18	Locked	40.9	2843	24703
19	Locked	40.3	2811	23195
20	Locked	40.3	2840	65483
21	Locked	40.3	3221	97039
22	Locked	40.9	4404	66766
23	Locked	40.3	22860	67615
24	Locked	40.3	35826	87816

[CaptiveAudience]

Time Priority Description
16/02/2021 16:51:15 critical No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
16/02/2021 16:51:13 Warning! RCS Partial Service;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
16/02/2021 16:51:12 Warning! Lost MDD Timeout;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
16/02/2021 16:51:7 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
16/02/2021 16:51:7 Warning! RCS Partial Service;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
16/02/2021 16:51:6 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
16/02/2021 15:46:46 Warning! RCS Partial Service;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
16/02/2021 15:46:44 Warning! Lost MDD Timeout;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
16/02/2021 15:46:40 Warning! RCS Partial Service;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
16/02/2021 15:46:40 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
16/02/2021 15:46:39 Warning! RCS Partial Service;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
16/02/2021 15:46:39 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 13:38:53 Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 06:18:38 critical No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
12/02/2021 11:31:53 notice LAN login Success;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
11/02/2021 01:38:53 Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
10/02/2021 14:35:28 critical No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
10/02/2021 14:35:26 Warning! RCS Partial Service;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
10/02/2021 14:35:24 Warning! Lost MDD Timeout;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;
10/02/2021 14:35:20 Warning! RCS Partial Service;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.0;

[Tudor]

Please include upstream power levels. Every downstream frame requires an upstream acknowledgement. /

[CaptiveAudience]

Upstream bonded channels

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

1	60300000	45.8	5120	64 qam	1
2	39400000	42.8	5120	64 qam	4
3	53700000	45	5120	64 qam	2
4	46200000	43.8	5120	64 qam	3

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	ATDMA	0	0	4	0
2	ATDMA	0	0	3	0
3	ATDMA	0	0	2	0
4	ATDMA	0	0	0	0

Thanks to everybody for looking!

[CaptiveAudience]

Upstream power levels have been included.