Virgin Media Community

[mrcbo]

4/06/2019 05:04:5	Warning!	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/06/2019 05:07:10	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/06/2019 05:07:23	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/06/2019 05:14:57	Warning!	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

Seem to be getting a lot of tehse messages and the speed doesn't seem to be working right. Download doesnt get above 10MB/s when speed tested and I have 130mb/s package

Any ideas?

[Dave_cq]

It would be helpful if you could also post your Upstream and Downstream data so that someone can check your power levels and signal to noise ratios.

[mrcbo]

Hi

Sorry yes here it is

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

1	227000000	-9	28	256 qam	12
2	139000000	-5.2	33	256 qam	1
3	147000000	-5.2	31	256 qam	2
4	155000000	-5.4	31	256 qam	3
5	163000000	-5.7	29	256 qam	4
6	171000000	-5.7	28	256 qam	5
7	179000000	-6.4	29	256 qam	6
8	187000000	-6.7	31	256 qam	7
9	195000000	-7	32	256 qam	8
10	203000000	-7.7	32	256 qam	9
11	211000000	-8	33	256 qam	10
12	219000000	-7.9	27	256 qam	11
13	235000000	-9.9	31	256 qam	13
14	243000000	-9.2	32	256 qam	14
15	251000000	-9.5	35	256 qam	15
16	259000000	-9.5	35	256 qam	16
17	267000000	-9.2	36	256 qam	17
18	275000000	-10.2	35	256 qam	18
19	283000000	-10.2	34	256 qam	19
20	291000000	-9.9	35	256 qam	20
21	299000000	-10	35	256 qam	21
22	307000000	-9.7	35	256 qam	22
23	315000000	-9.4	33	256 qam	23
24	323000000	-9	35	256 qam	24

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

1	Locked	28.8	2123056692	69212670
2	Locked	33.9	77521	66
3	Locked	31.6	61818409	249
4	Locked	31	302983677	587
5	Locked	29.3	1046380893	2689
6	Locked	28.4	1500170802	9447303
7	Locked	29.4	718749673	1322
8	Locked	31.6	63058217	723
9	Locked	32.6	27895015	483
10	Locked	32.6	32150400	97
11	Locked	33.4	19014421	100
12	Locked	27.7	-2088030541	27767801
13	Locked	31.4	673310926	608889
14	Locked	32.9	39275277	291
15	Locked	35.5	14615	135
16	Locked	35.7	1634	103
17	Locked	36.6	583	95
18	Locked	35.9	930	98
19	Locked	34.4	135212	49
20	Locked	35	17578	32
21	Locked	35.9	322	1
22	Locked	35.2	1759	47
23	Locked	33.8	98058	57
24	Locked	35	3459	10

[mrcbo]

Channel
Frequency (Hz)
Power (dBmV)
Symbol Rate (ksps)
Modulation
Channel ID
1
39400030
4.925
5120
64 qam
4
2
46200045
4.975
5120
64 qam
3

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

[Dave_cq]

I can already see from the Downstream data that there is a problem.  The recommended power range is from -6 dBmV to +10 dBmV and several of your channels are well below this range.  Probably as a result of this you are getting an awful lot of post-RS errors when there should be none.  The signal to noise ratio should be at least 34.5db, the higher the better, but many of your channels are way below this indicating a noisy connection. It also looks like only two of the four Upstream channels are active.

In short, this is not a good connection and will require an engineer's visit to sort it out. Possibly something as simple as putting you on a higher power tapping point in the street cabinet will resolve the problem.

In the meantime, just check that your cable connections are secure in the back of the hub and at the wall socket.

[jem101]

Yep, that's a real mess of a set of stats, I would hazard a guess there's a really dodgy cable connection somewhere in the link back to the cabinet. It's very unlikely that checking and tightening the connections on the Hub or wall box will do anything to fix this, but it certainly can't do any harm. You can either call it in as a fault but you might have to jump through a few hoops with the call centre to get them to agree to an engineer visit, or just hold tight for one of the forum team to spot this thread and contact you to arrange something.

There's just a chance that it's actually a dying Hub and it wouldn't surprise me if they swop it out as well.

[Gareth_L]

Hello mrcbo

Thanks for your post 

Sorry to hear about the issues you are having with your speed

As @Dave_cq and @jem101 have advised we will need to get an engineer booked out 

This is where I step in. 

So I can get an engineer booked out, I would need to pass security by a Private Message 

If you can check the purple envelope top right of your screen that would be great 

Gareth_L