area 3 fault fixed but issues remain

[2tw2]

The VM resolve team tell me the area 3 high utilisation fault F009369438 has now been fixed well ahead of the scheduled fix date of 30/9/22. But we are still experiencing an unreliable connection.  @Martin_N you advised yesterday that the issues would resolve when the area fault was fixed but they haven't - so it seems something else is going on with our Hub 4 connection.

We seem to have half hourly spikes on the BMQ and a poor SNR on several channels. Any suggestions gratefully received

3.0 Downstream channels

4	163000000	3.500000	32.321487	QAM256	4
1	139000000	3.599998	33.956509	QAM256	1
2	147000000	3.400002	31.403784	QAM256	2
3	155000000	3.400002	31.335388	QAM256	3
5	171000000	3.000000	33.376591	QAM256	5
6	179000000	2.299999	34.345688	QAM256	6
7	187000000	1.400002	35.083549	QAM256	7
8	195000000	0.900002	36.609653	QAM256	8
9	203000000	0.900002	37.355988	QAM256	9
10	211000000	1.500000	37.636276	QAM256	10
11	219000000	1.700001	38.605377	QAM256	11
12	227000000	1.799999	37.636276	QAM256	12
13	235000000	1.700001	37.636276	QAM256	13
14	243000000	1.299999	37.636276	QAM256	14
15	251000000	1.299999	36.609653	QAM256	15
16	259000000	1.799999	37.355988	QAM256	16
17	267000000	2.099998	37.355988	QAM256	17
18	275000000	2.700001	37.355988	QAM256	18
19	283000000	3.200001	37.636276	QAM256	19
20	291000000	3.599998	38.605377	QAM256	20
21	299000000	3.500000	38.605377	QAM256	21
22	307000000	2.500000	37.636276	QAM256	22
23	315000000	1.799999	37.355988	QAM256	23
24	323000000	1.599998	37.636276	QAM256	24
25	331000000	1.599998	37.636276	QAM256	25
26	339000000	1.500000	37.636276	QAM256	26
27	347000000	1.599998	38.605377	QAM256	27
28	355000000	1.700001	37.636276	QAM256	28
29	363000000	1.799999	38.605377	QAM256	29
30	371000000	2.099998	38.605377	QAM256	30
31	379000000	2.299999	38.983261	QAM256	31

3.0 Downstream channels

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

4	Locked	32.321487	1022466	0
1	Locked	33.956509	331511	0
2	Locked	31.403784	3659342	0
3	Locked	31.335388	4751173	0
5	Locked	33.376591	156370	0
6	Locked	34.345688	39573	0
7	Locked	35.083549	16929	0
8	Locked	36.609653	13036	0
9	Locked	37.355988	14329	0
10	Locked	37.636276	13189	0
11	Locked	38.605377	13970	0
12	Locked	37.636276	16840	0
13	Locked	37.636276	25927	0
14	Locked	37.636276	41943	0
15	Locked	36.609653	52659	0
16	Locked	37.355988	45200	0
17	Locked	37.355988	37160	0
18	Locked	37.355988	25571	0
19	Locked	37.636276	18691	0
20	Locked	38.605377	16950	0
21	Locked	38.605377	20746	0
22	Locked	37.636276	33072	0
23	Locked	37.355988	53523	0
24	Locked	37.636276	78104	0
25	Locked	37.636276	102274	0
26	Locked	37.636276	106381	0
27	Locked	38.605377	113443	0
28	Locked	37.636276	125319	0
29	Locked	38.605377	123963	0
30	Locked	38.605377	126334	0
31	Locked	38.983261	121600	0

3.1 Downstream channels

Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)

33

96

4K

1880

QAM2048

759

 

BMQ: https://www.thinkbroadband.com/broadband/monitoring/quality/share/a00bc81d32602b6d745db0cc8eb003de20...

[2tw2]

No Zoie I am afraid we are not fixed after all sadly

I reposted the latest downstream router data and while the power levels and SNR are fine for the 3.0 channels for 3.1 -7.2 dBmV is out of spec for channel 33  and is behind the high number of uncorrectables

3.1 Downstream channels

Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)

33

Locked

38

-7.2

2496975759

1216841

…so we have yet another engineer on Wednesday 24/8

One thing gets fixed but knocks another out…

[2tw2]

OK - have things settled down now? The 3.1 downstream power is now - 5.9 dBmV and the lowest SNR is 36.6 dB. Upstream looks OK.

Thanks so much for help

3.0 Downstream channels

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

4	163000000	5.500000	37.355988	QAM256	4
1	139000000	6.199997	38.983261	QAM256	1
2	147000000	5.800003	37.355988	QAM256	2
3	155000000	5.699997	36.609653	QAM256	3
5	171000000	4.900002	37.636276	QAM256	5
6	179000000	3.900002	38.605377	QAM256	6
7	187000000	3.099998	38.983261	QAM256	7
8	195000000	2.700001	38.983261	QAM256	8
9	203000000	2.400002	38.983261	QAM256	9
10	211000000	2.599998	40.366287	QAM256	10
11	219000000	2.700001	40.366287	QAM256	11
12	227000000	2.599998	38.983261	QAM256	12
13	235000000	2.400002	38.983261	QAM256	13
14	243000000	2.200001	38.983261	QAM256	14
15	251000000	2.500000	38.983261	QAM256	15
16	259000000	3.099998	38.983261	QAM256	16
17	267000000	2.900002	38.983261	QAM256	17
18	275000000	3.200001	38.605377	QAM256	18
19	283000000	3.299999	40.366287	QAM256	19
20	291000000	3.299999	40.366287	QAM256	20
21	299000000	2.900002	38.983261	QAM256	21
22	307000000	1.900002	38.983261	QAM256	22
23	315000000	1.200001	38.605377	QAM256	23
24	323000000	0.799999	38.605377	QAM256	24
25	331000000	0.599998	38.605377	QAM256	25
26	339000000	0.500000	38.983261	QAM256	26
27	347000000	0.400002	38.605377	QAM256	27
28	355000000	0.200001	38.983261	QAM256	28
29	363000000	0.000000	38.983261	QAM256	29
30	371000000	0.000000	38.983261	QAM256	30
31	379000000	0.200001	38.983261	QAM256	31

3.0 Downstream channels

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

4	Locked	37.355988	339	0
1	Locked	38.983261	275	0
2	Locked	37.355988	662	0
3	Locked	36.609653	729	0
5	Locked	37.636276	202	0
6	Locked	38.605377	204	0
7	Locked	38.983261	215	0
8	Locked	38.983261	210	0
9	Locked	38.983261	217	0
10	Locked	40.366287	144	0
11	Locked	40.366287	145	0
12	Locked	38.983261	162	0
13	Locked	38.983261	241	0
14	Locked	38.983261	349	0
15	Locked	38.983261	312	0
16	Locked	38.983261	189	0
17	Locked	38.983261	182	0
18	Locked	38.605377	189	0
19	Locked	40.366287	134	0
20	Locked	40.366287	175	0
21	Locked	38.983261	252	0
22	Locked	38.983261	461	0
23	Locked	38.605377	795	0
24	Locked	38.605377	1160	0
25	Locked	38.605377	1589	0
26	Locked	38.983261	1778	0
27	Locked	38.605377	2212	0
28	Locked	38.983261	2746	0
29	Locked	38.983261	3154	0
30	Locked	38.983261	3299	0
31	Locked	38.983261	2960	0

3.1 Downstream channels

Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)

33

96

4K

1880

QAM4096

759

3.1 Downstream channels

Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)

33

Locked

39

-5.9

811987495

1039768

[Martin_N]

Hi 2tw2,

Thank you for keeping us updated with regards to this issue. 

I'm glad that this all seem to be working for you now. 

Please do let us know if you need help in the future. 

^Martin

[2tw2]

Hi Martin

so in your view is this all ok

now?

thx