Virgin Media Community

[tetleyboy]

Hi

I am experiencing slow download speeds of around 35Mbps (tested using wired connection).

I normally get 350Mbps or more. Upload speeds seem as expected. Having read some of the other posts on here, do I have a problem with Channel 24? I am seeing lots of errors on Channel 24.

I have rebooted my hub several times and checked all my cables for a good connection. I have also done a reset on the hub.

No reported problems in my area, status reports OK

Can anyone help?

Thanks.

Downstream bonded channels

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

1	411000000	3.5	40	256 qam	1
2	419000000	3.4	40	256 qam	2
3	427000000	3.2	40	256 qam	3
4	435000000	3	40	256 qam	4
5	443000000	2.7	38	256 qam	5
6	451000000	3	40	256 qam	6
7	459000000	2.7	40	256 qam	7
8	467000000	2.5	38	256 qam	8
9	475000000	2.4	40	256 qam	9
10	483000000	2.2	38	256 qam	10
11	491000000	2.2	38	256 qam	11
12	499000000	2	38	256 qam	12
13	507000000	1.9	38	256 qam	13
14	515000000	1.5	38	256 qam	14
15	523000000	1.7	38	256 qam	15
16	531000000	1.5	38	256 qam	16
17	539000000	1.5	38	256 qam	17
18	547000000	1.2	38	256 qam	18
19	555000000	1	38	256 qam	19
20	563000000	0.7	38	256 qam	20
21	571000000	-0.5	38	256 qam	21
22	579000000	-2.2	37	256 qam	22
23	587000000	-7.2	34	256 qam	23
24	595000000	-17	27	256 qam	24

Downstream bonded channels

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

1	Locked	40.9	0	0
2	Locked	40.3	5	0
3	Locked	40.3	0	0
4	Locked	40.3	6	0
5	Locked	40.3	5	0
6	Locked	40.3	6	0
7	Locked	40.3	5	0
8	Locked	38.9	4	0
9	Locked	40.3	5	0
10	Locked	38.9	5	0
11	Locked	38.9	4	0
12	Locked	38.9	4	0
13	Locked	38.9	5	0
14	Locked	38.6	0	0
15	Locked	38.9	5	0
16	Locked	38.9	4	0
17	Locked	38.9	5	0
18	Locked	38.6	5	0
19	Locked	38.6	6	0
20	Locked	38.9	5	0
21	Locked	38.6	6	0
22	Locked	37.6	10	0
23	Locked	34.4	7647	151
24	Locked	27.3	85877352	3315870

[MikeRobbo · Accepted solution]

Two of your Downstream Power Levels are too low, this is also be reflected with the Pre & Post RS Errors on those two channels.

This will need an engineer to put right.

You can either call in (08:00 is the best time) or wait on here for a few days (6 to 10 days average) until one of the VM Forum Staff comes along.

If you wait on here Do Not bump the thread it will put it further down the VM 'to do list'.

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

1	411000000	3.5	40	256 qam	1
2	419000000	3.4	40	256 qam	2
3	427000000	3.2	40	256 qam	3
4	435000000	3	40	256 qam	4
5	443000000	2.7	38	256 qam	5
6	451000000	3	40	256 qam	6
7	459000000	2.7	40	256 qam	7
8	467000000	2.5	38	256 qam	8
9	475000000	2.4	40	256 qam	9
10	483000000	2.2	38	256 qam	10
11	491000000	2.2	38	256 qam	11
12	499000000	2	38	256 qam	12
13	507000000	1.9	38	256 qam	13
14	515000000	1.5	38	256 qam	14
15	523000000	1.7	38	256 qam	15
16	531000000	1.5	38	256 qam	16
17	539000000	1.5	38	256 qam	17
18	547000000	1.2	38	256 qam	18
19	555000000	1	38	256 qam	19
20	563000000	0.7	38	256 qam	20
21	571000000	-0.5	38	256 qam	21
22	579000000	-2.2	37	256 qam	22
23	587000000	-7.2	34	256 qam	23
24	595000000	-17	27	256 qam	24

[tetleyboy]

Thanks.

Channels 23 and 24 seem to have now returned to normal, having been low for 24 hours. No idea why!

Download speed is now up to 200Mbps and climbing.

Downstream bonded channels

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

1	411000000	3.5	40	256 qam	1
2	419000000	3.2	40	256 qam	2
3	427000000	3	40	256 qam	3
4	435000000	3	40	256 qam	4
5	443000000	2.7	38	256 qam	5
6	451000000	2.7	40	256 qam	6
7	459000000	2.5	38	256 qam	7
8	467000000	2.5	38	256 qam	8
9	475000000	2.2	40	256 qam	9
10	483000000	2	38	256 qam	10
11	491000000	2	38	256 qam	11
12	499000000	1.7	38	256 qam	12
13	507000000	1.7	38	256 qam	13
14	515000000	1.5	38	256 qam	14
15	523000000	1.5	38	256 qam	15
16	531000000	1.5	38	256 qam	16
17	539000000	1.5	38	256 qam	17
18	547000000	1.5	38	256 qam	18
19	555000000	1.5	38	256 qam	19
20	563000000	1.4	38	256 qam	20
21	571000000	1	38	256 qam	21
22	579000000	1.2	38	256 qam	22
23	587000000	1.2	38	256 qam	23
24	595000000	1.2	38	256 qam	24

[tetleyboy]

OK, I seems to be back to low download speeds again.

Back to low download speeds (around 30Mbps). All cables seem properly connected and secure. Rebooting modem doesn't help.

Will wait for a response from a VM moderator.

Downstream bonded channels

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

1	411000000	3.5	38	256 qam	1
2	419000000	3.4	40	256 qam	2
3	427000000	3.2	40	256 qam	3
4	435000000	3.2	40	256 qam	4
5	443000000	2.9	40	256 qam	5
6	451000000	3	40	256 qam	6
7	459000000	2.7	38	256 qam	7
8	467000000	2.7	40	256 qam	8
9	475000000	2.5	40	256 qam	9
10	483000000	2.2	38	256 qam	10
11	491000000	2.2	38	256 qam	11
12	499000000	2	38	256 qam	12
13	507000000	2	38	256 qam	13
14	515000000	1.7	38	256 qam	14
15	523000000	1.9	38	256 qam	15
16	531000000	1.7	38	256 qam	16
17	539000000	1.7	38	256 qam	17
18	547000000	1.5	38	256 qam	18
19	555000000	1.2	38	256 qam	19
20	563000000	0.9	38	256 qam	20
21	571000000	-0.2	38	256 qam	21
22	579000000	-1.7	37	256 qam	22
23	587000000	-5.9	35	256 qam	23
24	595000000	-16.3	27	256 qam	24

Downstream bonded channels

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

1	Locked	38.9	0	0
2	Locked	40.3	6	0
3	Locked	40.3	0	0
4	Locked	40.3	5	0
5	Locked	40.3	5	0
6	Locked	40.3	6	0
7	Locked	38.6	4	0
8	Locked	40.3	3	0
9	Locked	40.3	5	0
10	Locked	38.9	5	0
11	Locked	38.9	5	0
12	Locked	38.9	0	0
13	Locked	38.9	5	0
14	Locked	38.9	0	0
15	Locked	38.9	6	0
16	Locked	38.9	4	0
17	Locked	38.9	5	0
18	Locked	38.6	12	0
19	Locked	38.9	4	0
20	Locked	38.6	6	0
21	Locked	38.6	5	0
22	Locked	37.6	7	0
23	Locked	35.5	34	0
24	Locked	27.4	10521339	441763

[Lisa_CC · Accepted solution]

Hey there tetleyboy, thanks for posting on our Forum and sorry to hear about your broadband issues.

I've had a sneaky peek at your network details using the information we have on here and can see some downstream power issues on a few channels which will require a tech visit. I've booked on in for the soonest available date and you can find the details on your online account where you may re-arrange it if required.

Thanks,

Lisa