Jitter

[C_L_62]

Hi - I have been experiencing high jitter - e.g. 58, 120 and 91ms.  This is seriously affecting testability and functionality of MS teams that I rely on for work.  Is this something virgin media can investigate / fix?

Cheers

[jpeg1]

As a first step, go to the Hub on 192.168.0.1   Click on Router Status.  Copy and paste into a message here (as text, not screenshot) the Downstream, Upstream and Network Log. This will give a clue as to what is happening.

Are you using a WiFi or ethernet connection?

[C_L_62]

Downstream

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

1	139000000	3	40	256 qam	1
2	147000000	3	40	256 qam	2
3	155000000	3	40	256 qam	3
4	163000000	2.7	40	256 qam	4
5	171000000	2.7	40	256 qam	5
6	179000000	2.7	40	256 qam	6
7	187000000	2.9	40	256 qam	7
8	195000000	2.7	40	256 qam	8
9	203000000	2.5	40	256 qam	9
10	211000000	2.4	40	256 qam	10
11	219000000	2.2	40	256 qam	11
12	227000000	2.2	40	256 qam	12
13	235000000	2	40	256 qam	13
14	243000000	1.5	40	256 qam	14
15	251000000	1.4	40	256 qam	15
16	259000000	1.5	40	256 qam	16
17	267000000	1.7	40	256 qam	17
18	275000000	1.7	40	256 qam	18
19	283000000	2	40	256 qam	19
20	291000000	2.2	40	256 qam	20
21	299000000	2.5	40	256 qam	21
22	307000000	2.2	40	256 qam	22
23	315000000	2.2	40	256 qam	23
24	323000000	2.2	40	256 qam	24

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

1	Locked	40.9	21	0
2	Locked	40.9	55	0
3	Locked	40.9	41	0
4	Locked	40.9	45	0
5	Locked	40.9	49	0
6	Locked	40.9	73	0
7	Locked	40.9	74	0
8	Locked	40.9	84	0
9	Locked	40.9	74	0
10	Locked	40.9	81	0
11	Locked	40.9	72	0
12	Locked	40.9	61	0
13	Locked	40.3	33	0
14	Locked	40.9	43	0
15	Locked	40.9	56	0
16	Locked	40.9	49	0
17	Locked	40.9	26	0
18	Locked	40.9	38	0
19	Locked	40.3	35	0
20	Locked	40.9	25	0
21	Locked	40.3	26	0
22	Locked	40.9	34	0
23	Locked	40.9	62	0
24	Locked	40.9	45	0

upstream

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

1	39400000	47.5	5120	64 qam	4
2	46200000	47.5	5120	64 qam	3
3	53700000	47.5	5120	64 qam	2
4	60300000	49	5120	64 qam	1

[C_L_62]

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

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

log

Time Priority Description

30/07/2021 07:45:35	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/07/2021 23:34:36	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/07/2021 23:34:36	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/07/2021 17:11:55	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/07/2021 11:34:36	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/07/2021 11:34:36	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/07/2021 22:55:17	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/07/2021 16:40:12	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/07/2021 16:40:12	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/07/2021 16:14:46	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/07/2021 17:29:20	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/07/2021 17:29:20	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/07/2021 01:05:27	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/07/2021 05:29:18	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/07/2021 05:29:18	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/07/2021 03:51:57	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/07/2021 17:29:19	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/07/2021 17:29:19	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/07/2021 15:40:36	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/07/2021 05:29:19	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

Using wifi connection.

Cheers!

[jpeg1]

The connection data doesn't show any serious problems. 

Wi-Fi will always show some jitter. The degree depends on a number of local factors. An ethernet connection will always be better than Wi-Fi.   Can you try that? 

[C_L_62]

Thanks - will start using ethernet connection and see how it goes.

Cheers!

[Corey_C]

Thanks for your post and updates, C_L_62,

Sorry to hear that you have been having connection issues. How has things been since your post? I have run a remote diagnostic and have not been able to identify any issues with your connection.
We can also provide online broadband help here: https://www.virginmedia.com/help/services-support/broadband
Let us know how it goes with a wired connection. 

Cheers,

Corey C