Virgin Media Community

[joek66]

Recently joined VM on a 100 Mbps connection and ping is typically 90-120ms (significantly more than previous TalkTalk fibre connection). 

I'm using a PowerLine connector but tried removing that today and connecting directly via Ethernet cable - very little improvement.

Would love to know what I could do to get the ping down to something a bit more respectable, e.g. 50ms or lower! 

Thanks

[joek66]

Assuming it's useful to see this...please let me know if any other info is required 😊

Downstream bonded channels

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

1	330750000	2.4	38	256 qam	25
2	202750000	0.9	38	256 qam	9
3	210750000	0.7	38	256 qam	10
4	218750000	0.7	38	256 qam	11
5	226750000	0.5	38	256 qam	12
6	234750000	0.4	38	256 qam	13
7	242750000	0	38	256 qam	14
8	250750000	-0.5	38	256 qam	15
9	258750000	-0.9	38	256 qam	16
10	266750000	-1	38	256 qam	17
11	274750000	-0.9	38	256 qam	18
12	282750000	0	38	256 qam	19
13	290750000	0.5	38	256 qam	20
14	298750000	1	38	256 qam	21
15	306750000	1.7	38	256 qam	22
16	314750000	2.2	40	256 qam	23
17	322750000	2.5	38	256 qam	24
18	338750000	2.2	38	256 qam	26
19	346750000	1.9	40	256 qam	27
20	354750000	1.7	40	256 qam	28
21	362750000	1.5	40	256 qam	29
22	370750000	1.2	40	256 qam	30
23	378750000	1	38	256 qam	31
24	386750000	0.7	40	256 qam	32

Downstream bonded channels

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

1	Locked	38.9	455	2616
2	Locked	38.9	706	2995
3	Locked	38.9	754	2778
4	Locked	38.6	615	3870
5	Locked	38.9	569	3970
6	Locked	38.9	754	3673
7	Locked	38.9	837	1666
8	Locked	38.6	2070	8130
9	Locked	38.9	3914	6417
10	Locked	38.9	3631	7020
11	Locked	38.6	2860	8295
12	Locked	38.6	881	9317
13	Locked	38.9	447	1886
14	Locked	38.9	492	10458
15	Locked	38.6	383	2236
16	Locked	40.3	279	2827
17	Locked	38.9	300	2203
18	Locked	38.9	369	2520
19	Locked	40.3	505	2937
20	Locked	40.3	470	2146
21	Locked	40.3	313	2432
22	Locked	40.3	382	2286
23	Locked	38.9	1472	9438
24	Locked	40.9	510	2059

Upstream bonded channels

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

1	53699898	47.3	5120	64 qam	2
2	60299990	48	5120	64 qam	1
3	46200126	46.3	5120	64 qam	3
4	39400000	45.8	5120	64 qam	4

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	ATDMA	0	0	13	0
2	ATDMA	0	0	15	0
3	ATDMA	0	0	19	0
4	ATDMA	0	0	23	0

[joek66]

Started a BQM, live link: 

https://www.thinkbroadband.com/broadband/monitoring/quality/share/d51fe4e8b25f4b2c9109620bcdcf33cb58292d42

[carl_pearce]

---

@joek66 wrote:

Assuming it's useful to see this...please let me know if any other info is required 😊

Downstream bonded channels

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

1	330750000	2.4	38	256 qam	25
2	202750000	0.9	38	256 qam	9
3	210750000	0.7	38	256 qam	10
4	218750000	0.7	38	256 qam	11
5	226750000	0.5	38	256 qam	12
6	234750000	0.4	38	256 qam	13
7	242750000	0	38	256 qam	14
8	250750000	-0.5	38	256 qam	15
9	258750000	-0.9	38	256 qam	16
10	266750000	-1	38	256 qam	17
11	274750000	-0.9	38	256 qam	18
12	282750000	0	38	256 qam	19
13	290750000	0.5	38	256 qam	20
14	298750000	1	38	256 qam	21
15	306750000	1.7	38	256 qam	22
16	314750000	2.2	40	256 qam	23
17	322750000	2.5	38	256 qam	24
18	338750000	2.2	38	256 qam	26
19	346750000	1.9	40	256 qam	27
20	354750000	1.7	40	256 qam	28
21	362750000	1.5	40	256 qam	29
22	370750000	1.2	40	256 qam	30
23	378750000	1	38	256 qam	31
24	386750000	0.7	40	256 qam	32

Downstream bonded channels

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

1	Locked	38.9	455	2616
2	Locked	38.9	706	2995
3	Locked	38.9	754	2778
4	Locked	38.6	615	3870
5	Locked	38.9	569	3970
6	Locked	38.9	754	3673
7	Locked	38.9	837	1666
8	Locked	38.6	2070	8130
9	Locked	38.9	3914	6417
10	Locked	38.9	3631	7020
11	Locked	38.6	2860	8295
12	Locked	38.6	881	9317
13	Locked	38.9	447	1886
14	Locked	38.9	492	10458
15	Locked	38.6	383	2236
16	Locked	40.3	279	2827
17	Locked	38.9	300	2203
18	Locked	38.9	369	2520
19	Locked	40.3	505	2937
20	Locked	40.3	470	2146
21	Locked	40.3	313	2432
22	Locked	40.3	382	2286
23	Locked	38.9	1472	9438
24	Locked	40.9	510	2059

Upstream bonded channels

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

1	53699898	47.3	5120	64 qam	2
2	60299990	48	5120	64 qam	1
3	46200126	46.3	5120	64 qam	3
4	39400000	45.8	5120	64 qam	4

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	ATDMA	0	0	13	0
2	ATDMA	0	0	15	0
3	ATDMA	0	0	19	0
4	ATDMA	0	0	23	0

---

The Post RS Errors and T3 timeouts are a concern.

Looks like a noisy line or local outage.

Or even a faulty HUB!

[joek66]

Hello, is there any chance of a response from VM on this please? It does appear as though there is a technical issue that requires some further investigation/action.

Many thanks

[joek66]

Do I need to keep bumping this thread for a response from VM or just wait patiently?

My BQM will show some periods of total packet loss, this is definitely not a VM issue, the power has been turned off for some work, should be back on shortly. 

Otherwise the BQM does seem to be showing more erratic/high latency during peak times, and overnight it's dropping back down again. 

[Zak_M]

Good afternoon @joek66. 

Welcome to the forums & taking the time to post.

I am sorry to hear that you have had some issues your services. 

I have run some diagnostics from here & everything seems to be as it should, There are no issues listed on the network log, The power levels look to be where they should & the upload & download speeds provided to the hub are where they should be & on average over the month is higher than expected. 

Kind regards,

Za)k_M

[jpeg1]

As @carl_pearce has highlighted, there is too much noise on your downstream and far too many T3 timeouts. Some packet loss too, very likely due to those two faults.

It's not acceptable and you need a technician visit to correct your connection.  

[joek66]

The post RS errors seem to have gone:

Downstream bonded channels

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

1	330750000	2	40	256 qam	25
2	202750000	1.2	38	256 qam	9
3	210750000	1	38	256 qam	10
4	218750000	1	40	256 qam	11
5	226750000	0.9	38	256 qam	12
6	234750000	0.7	38	256 qam	13
7	242750000	0.2	38	256 qam	14
8	250750000	0	38	256 qam	15
9	258750000	-0.2	40	256 qam	16
10	266750000	-0.2	38	256 qam	17
11	274750000	-0.2	38	256 qam	18
12	282750000	0.2	38	256 qam	19
13	290750000	0.5	40	256 qam	20
14	298750000	1	38	256 qam	21
15	306750000	1.5	38	256 qam	22
16	314750000	1.9	40	256 qam	23
17	322750000	2	40	256 qam	24
18	338750000	2	40	256 qam	26
19	346750000	1.7	40	256 qam	27
20	354750000	1.7	40	256 qam	28
21	362750000	1.5	40	256 qam	29
22	370750000	1.2	40	256 qam	30
23	378750000	1	40	256 qam	31
24	386750000	0.9	40	256 qam	32

Downstream bonded channels

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

1	Locked	40.3	58	0
2	Locked	38.9	52	0
3	Locked	38.9	47	0
4	Locked	40.3	44	0
5	Locked	38.9	40	0
6	Locked	38.9	52	0
7	Locked	38.9	60	0
8	Locked	38.9	74	0
9	Locked	40.3	87	0
10	Locked	38.9	105	0
11	Locked	38.9	162	0
12	Locked	38.9	57	0
13	Locked	40.3	39	0
14	Locked	38.9	71	0
15	Locked	38.9	64	0
16	Locked	40.3	46	0
17	Locked	40.3	54	0
18	Locked	40.3	61	0
19	Locked	40.3	70	0
20	Locked	40.3	70	0
21	Locked	40.9	48	0
22	Locked	40.3	42	0
23	Locked	40.3	35	0
24	Locked	40.9	19	0

Still some T3 timeouts although not as many - is this anything to be concerned about?

Upstream bonded channels

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

1	53700000	48.3	5120	64 qam	2
2	60300000	49.3	5120	64 qam	1
3	46199971	47.5	5120	64 qam	3
4	39400000	46.8	5120	64 qam	4

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	ATDMA	0	0	2	0
2	ATDMA	0	0	3	0
3	ATDMA	0	0	5	0
4	ATDMA	0	0	1	0

And while the average latency on the BQM looks mostly fine, there are some clear spikes, often during peak/day time hours. 

[Zak_M]

Thank you for coming back to us @joek66, 

I have further run the diagnostics this morning & there are now no downstream power levels showing.

This is worth getting an engineer to look into, I will pop you over a PM so that we can confirm your information.

Kind regards,

Zak_M