Virgin Media Community

[Mungbean]

Hi all,

My Hub3 restarts the wifi every few hours dropping all connected devices.  Broadband appears to be up and only the solid green wifi light comes on when the wifi drops.  The solid white light stays on all the time.

I've spoken to Virign support who have said its because my devices were only connecting on 2.4 rather than 5.  I reset default on device and virign media support chap has said 2.4 falls over with to many connections and to balance across both 2.4 and 5 which i have now done.

Unfortunately error still occurring, see logs below.  Currently virgin support line saying i should call back later 😉 they are too busy.

Network Log

Time Priority Description

27/01/2021 12:01:44	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/01/2021 01:36:27	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/01/2021 16:02:18	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/01/2021 08:19:31	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/01/2021 08:14:56	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/01/2021 01:34:46	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

Downstream bonded channels

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

1	322750000	3.7	38	256 qam	24
2	202750000	5.8	38	256 qam	9
3	210750000	5.5	38	256 qam	10
4	218750000	5	38	256 qam	11
5	226750000	4.9	38	256 qam	12
6	234750000	4.5	38	256 qam	13
7	242750000	4.3	38	256 qam	14
8	250750000	4.1	38	256 qam	15
9	258750000	4.3	38	256 qam	16
10	266750000	4.4	38	256 qam	17

Downstream bonded channels

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

1	Locked	38.9	33	0
2	Locked	38.9	51	0
3	Locked	38.6	23	0
4	Locked	38.9	17	0
5	Locked	38.6	45	0
6	Locked	38.9	30	0
7	Locked	38.9	24	0
8	Locked	38.9	38	0
9	Locked	38.6	27	0
10	Locked	38.9	57	0

Upstream bonded channels

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

1	60300069	42.8	5120	64 qam	6
2	46200020	41.8	5120	64 qam	8
3	39400031	42	5120	64 qam	9
4	53699979	42.5	5120	64 qam	7

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

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

[jbrennand]

Have you only 10 down channels - where are the other 14 ?

Do you mean that you have renamed the SSID's of the 2.4 and 5 GHz bands to separate them. If not do so and at the same time switch off "channel optimisation"

[Mungbean]

Thanks John, I ran out of space in the post so deleted some lines, reposted below:

I have renamed SSID's and channel optimization is disabled.

Downstream bonded channels

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

1	322750000	3.5	38	256 qam	24
2	202750000	5.8	38	256 qam	9
3	210750000	5.5	38	256 qam	10
4	218750000	4.9	38	256 qam	11
5	226750000	4.9	38	256 qam	12
6	234750000	4.5	38	256 qam	13
7	242750000	4.3	38	256 qam	14
8	250750000	4.1	38	256 qam	15
9	258750000	4.1	38	256 qam	16
10	266750000	4.4	38	256 qam	17
11	274750000	4.3	38	256 qam	18
12	282750000	4.1	40	256 qam	19
13	290750000	4	38	256 qam	20
14	298750000	4.1	38	256 qam	21
15	306750000	4	38	256 qam	22
16	314750000	3.7	40	256 qam	23
17	330750000	3.5	38	256 qam	25
18	370750000	2.4	40	256 qam	26
19	378750000	2.5	38	256 qam	27
20	386750000	2.4	38	256 qam	28
21	394750000	2.5	40	256 qam	29
22	402750000	2.4	38	256 qam	30
23	410750000	2.7	38	256 qam	31
24	418750000	2.5	40	256 qam	32

Downstream bonded channels

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

1	Locked	38.9	33	0
2	Locked	38.9	55	0
3	Locked	38.9	24	0
4	Locked	38.9	20	0
5	Locked	38.9	45	0
6	Locked	38.9	32	0
7	Locked	38.9	25	0
8	Locked	38.9	39	0
9	Locked	38.9	28	0
10	Locked	38.9	59	0
11	Locked	38.9	36	0
12	Locked	40.3	36	0
13	Locked	38.9	35	0
14	Locked	38.9	40	0
15	Locked	38.9	50	0
16	Locked	40.9	69	0
17	Locked	38.9	47	0
18	Locked	40.3	29	0
19	Locked	38.9	31	0
20	Locked	38.9	31	0
21	Locked	40.3	51	0
22	Locked	38.9	40	0
23	Locked	38.9	51	0
24	Locked	40.3	29	0

[jbrennand · Accepted solution]

All stats are good. Looking like it may just be a wifi issue. Can you connect a laptop or computer directly to the Hub by a Cat5e/6/7 ethernet cable and see if that maintains connectivity ok at the same time as the wifi ones drop out.

If it does - the best way of "curing" such a wifi issue is to get your own better quality wireless equipment

[Mungbean]

Thanks John,

I'll connect directly see if both ethernet and wifi drop at the same time.  My guess is the ethernet will be fine.

If I was to purchase a wifi device could you suggest a model?  I see prices vary from £50 up to several hundred.

Much appreciated.

[jbrennand · Accepted solution]

Do you want a Rolls Royce or a Ford Fiesta 🙂

And it depends on the size, layout construction of your property, your ability to run ethernet cables (or not) and of course budget.

Options are....
(1) A Mesh System, (2) A Wireless router, (3) A Wireless access point or (4) A combination of (2) & (3).

I would say a good Mesh will be the best/simplest/most flexible for most average users. 

A Triband system is better for the "backhaul" and for users on high speed packages and umpteen simultaneous connections. Wifi6 would be good if your wifi devices are WiFi6 capable - mine are.

But these may be overkill for your needs