Virgin Media Community

[hubbinslfc]

Hi. 

Recently I've been getting inconsistent upload speeds. Should be getting 36Mbps but on average only getting around 10Mbps. Download speed has always been fine. Seems to be worse during working hours, so may just be network congestion in the area. All speedtests have been completed hard wired. Can anybody technical please check the attached and verify all levels are normal. Thanks.

Downstream bonded channels

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

1	298750000	-2.9	37	256 qam	21
2	138750000	-3	36	256 qam	1
3	146750000	-3	36	256 qam	2
4	154750000	-3	36	256 qam	3
5	162750000	-3.2	37	256 qam	4
6	170750000	-3.2	36	256 qam	5
7	178750000	-3	36	256 qam	6
8	186750000	-3	36	256 qam	7
9	194750000	-3	37	256 qam	8
10	202750000	-3	37	256 qam	9
11	210750000	-3.2	37	256 qam	10
12	218750000	-3.2	37	256 qam	11
13	226750000	-3.4	37	256 qam	12
14	234750000	-3.2	38	256 qam	13
15	242750000	-2.7	37	256 qam	14
16	250750000	-2.5	37	256 qam	15
17	258750000	-2.5	37	256 qam	16
18	266750000	-2.2	38	256 qam	17
19	274750000	-2.4	38	256 qam	18
20	282750000	-2.5	38	256 qam	19
21	290750000	-2.7	38	256 qam	20
22	306750000	-2.7	38	256 qam	22
23	314750000	-2.5	38	256 qam	23
24	322750000	-2.9	38	256 qam	24

Downstream bonded channels

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

1	Locked	37.6	250	0
2	Locked	36.6	3679	0
3	Locked	36.6	721	0
4	Locked	36.6	647	0
5	Locked	37.3	615	0
6	Locked	36.6	811	8
7	Locked	36.6	973	3
8	Locked	36.6	634	0
9	Locked	37.6	513	0
10	Locked	37.6	583	2
11	Locked	37.3	493	0
12	Locked	37.6	423	0
13	Locked	37.6	394	0
14	Locked	38.6	357	0
15	Locked	37.9	323	0
16	Locked	37.3	294	0
17	Locked	37.6	266	0
18	Locked	38.6	234	0
19	Locked	38.6	254	0
20	Locked	38.6	235	0
21	Locked	38.9	199	0
22	Locked	38.6	244	0
23	Locked	38.6	214	0
24	Locked	38.6	182	0

[hubbinslfc]

Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 53700000 48.5 5120 32 qam 1
2 32600000 48.2 5120 16 qam 4
3 39400000 48.2 5120 16 qam 3
4 46200000 47.7 5120 16 qam 2


Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 ATDMA 0 0 0 0
2 ATDMA 0 0 0 0
3 ATDMA 0 0 0 0
4 ATDMA 0 0 1 0

[Adduxi · Accepted solution]

---

@hubbinslfc wrote:
Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 53700000 48.5 5120 32 qam 1
2 32600000 48.2 5120 16 qam 4
3 39400000 48.2 5120 16 qam 3
4 46200000 47.7 5120 16 qam 2
<snip>

---

There is a problem with your Upstream, all 4 channels should be 64QAM.  This usually is an indication of noise ingress on the line.  VM will need to fix this.  You could try checking with Area faults on 0800 561 0061 or if you have a VM landline 150 in case it's a small local area problem.

[hubbinslfc]

Many thanks for the reply. I've checked and there aren't any faults in the area.

Is the only way to get VM to check the fault by phoning them to arrange a visit or can I request tech support on here? Thanks.

[Adduxi]

---

@hubbinslfc wrote:

<snip>  Is the only way to get VM to check the fault by phoning them to arrange a visit or can I request tech support on here? Thanks.

---

If you wait here a day or two a VM Mod will pick this up.

[hubbinslfc]

Thanks again.

Upload speed has been fluctuating most of the day but seems okay now and the modulation has changed to 64QAM. I've not reset or changed anything.

Do you or anyone else know whether this is normal or can something external cause interference?

[hubbinslfc]

Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 53700000 48.5 5120 64 qam 1
2 32600000 47 5120 64 qam 4
3 39400000 48.5 5120 64 qam 3
4 46200000 48.5 5120 32 qam 2


Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 ATDMA 0 0 0 0
2 ATDMA 0 0 0 0
3 ATDMA 0 0 0 0
4 ATDMA 0 0 1 0

[hubbinslfc]

Any VM Mod's going to pick this up for investigation please?

[hubbinslfc]

Does this graph help at all? Trying to video and conference call during the day is a pain. Upload speed is up and down constantly.

Anyone from Virgin able to help or do I need to suffer the dreaded call centre?

https://www.thinkbroadband.com/broadband/monitoring/quality/share/d1ecb4422d26bb8512d33edd29bedacc9f8a2a15-13-01-2022

[John_GS]

Hi hubbinslfc

Thanks for posting and apologies for the upload speed issue. There is an SNR (signal to noise ratio) issue that you are affected by. The fault reference is F008853234 and the estimated fix date is the 31st January. Please monitor the connection for me and let me know if still an issue after this time.

Best,