1Gig speed keeps droping to 50 megs

[iveivan]

Hi, I have a 1 Gig speed connection, diretly connected to pc, usually is 950 megs, but now in the past week keeps droping to 50 60 megs, I restart hub 4 so many times a day now, it  works for a bit then there we go again, is really bad. What is going on?

I has some issues months ago engineer came around checked all cables, hub all fine and no solution was given and speed was better for a while now same issues.

[iveivan]

3.0 Downstream channels

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

8	467000000	4.4	37.4	QAM256	8
1	411000000	5.9	37.4	QAM256	1
2	419000000	5.6	39	QAM256	2
3	427000000	5.4	38.6	QAM256	3
4	435000000	5.3	38.6	QAM256	4
5	443000000	5	35.8	QAM256	5
6	451000000	4.8	38.6	QAM256	6
7	459000000	4.7	37.6	QAM256	7
9	475000000	4.6	37.6	QAM256	9
10	483000000	4.7	36.6	QAM256	10
11	491000000	4.7	37.6	QAM256	11
12	499000000	4.9	38.6	QAM256	12
13	507000000	5.3	39	QAM256	13
14	515000000	5.4	38.6	QAM256	14
15	523000000	5.5	38.6	QAM256	15
16	531000000	5.7	38.6	QAM256	16
17	539000000	5.7	38.6	QAM256	17
18	547000000	5.9	38.6	QAM256	18
19	555000000	6	38.6	QAM256	19
20	563000000	6	39	QAM256	20
21	571000000	6.2	38.6	QAM256	21
22	579000000	6.2	38.6	QAM256	22
23	587000000	6.1	38.6	QAM256	23
24	595000000	6.1	38.6	QAM256	24
25	603000000	5.9	37.6	QAM256	25
26	611000000	5.7	37.6	QAM256	26
27	619000000	5.7	38.6	QAM256	27
28	627000000	5.6	37.6	QAM256	28
29	635000000	5.7	37.6	QAM256	29
30	643000000	5.7	37.6	QAM256	30
31	651000000	5.8	37.6	QAM256	31

3.0 Downstream channels

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

8	Locked	37.355988	745326	0
1	Locked	37.355988	672227	0
2	Locked	38.983261	736330	0
3	Locked	38.605377	760255	0
4	Locked	38.605377	556480	0
5	Locked	35.779911	750474	106604
6	Locked	38.605377	787696	0
7	Locked	37.636276	763392	0
9	Locked	37.636276	646973	0
10	Locked	36.609653	770891	0
11	Locked	37.636276	706301	0
12	Locked	38.605377	0	0
13	Locked	38.983261	0	0
14	Locked	38.605377	1	0
15	Locked	38.605377	0	0
16	Locked	38.605377	0	0
17	Locked	38.605377	0	0
18	Locked	38.605377	155785	0
19	Locked	38.605377	0	0
20	Locked	38.983261	20471	0
21	Locked	38.605377	0	0
22	Locked	38.605377	7	0
23	Locked	38.605377	0	0
24	Locked	38.605377	1	0
25	Locked	37.636276	0	0
26	Locked	37.636276	0	0
27	Locked	38.605377	0	0
28	Locked	37.636276	1	0
29	Locked	37.636276	1	0
30	Locked	37.636276	0	0
31	Locked	37.636276	0	0

3.1 Downstream channels

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

159

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)

159

Locked

40

4

5571719

0

[iveivan]

3.0 Upstream channels

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

1	25800000	42	5120 KSym/sec	64QAM	6
2	32600000	42.5	5120 KSym/sec	64QAM	5
3	39400000	42.5	5120 KSym/sec	16QAM	4
4	46200000	43	5120 KSym/sec	64QAM	3

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	US_TYPE_STDMA	0	0	0	0
2	US_TYPE_STDMA	0	0	0	0
3	US_TYPE_STDMA	0	0	0	0
4	US_TYPE_STDMA	0	0	0	0

[iveivan]

Just dropped again, 20 megs! I restarted my modem 6 times now in 1 hour

[jbrennand]

Its a bit worrying that one up channel has dropped to 16qam and there are lots of PostRS errors on one down channel (5).

Can you do this...
_________________

Switch the Hub off and unplug it from the mains supply for five minutes. Whilst it's off, do a quick check that all of your coax and ethernet cable connections are in nice and "finger" tight - at the Hub and wall box and also at any connectors etc. Ensure there are no “unterminated cable loose ends. Disconnect all the connections and reconnect to be sure. Also check that the internal wiring is ok with no kinking or chaffing, check that all looks good with the outside cabling and wall box (no “staples, etc.,) piercing the cables. Then switch the Hub back on and leave ~5 minutes. 
When all done, check back in the settings and ensure that the RS error counts and any T3 errors have all reset to 0. Also that all 4 Up channels are at 64qam. Then check every hour or so to see if the errors start reappearing - they shouldn't. If they do (particularly any PostRS and T3 ones) you have a problem (noise) that only a Tech visit will sort

________________________

Also

If you haven’t already, set up a free, secure and “offlsite” - “Broadband Quality Monitor” to continually monitor the state of your connection and record any true network dropouts , latency issues, packet drops, etc - it will thus allow you to differentiate between those and simple wifi dropouts. It does it 24/7/365 and it keeps a visual record of any/all of your network disconnections, useful data to have to match to the Network logs (in your Hub settings) and also in discussions with VM - note it will take a few hours to start seeing a sensible picture - post up the “link” to the “share live graph”. Click the lower link (Share Live Graph) then click generate. Copy the text in the Direct Link box, beware, there may be more text than you can see. On here click the Link icon (2 links chain to the left of the camera icon) In the URL box paste the link you copied and then click OK

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

[iveivan]

3.0 Downstream channels

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

8	467000000	3.8	37.6	QAM256	8
1	411000000	5.8	39	QAM256	1
2	419000000	5.6	39	QAM256	2
3	427000000	5.2	38.6	QAM256	3
4	435000000	4.8	38.6	QAM256	4
5	443000000	4.4	38.6	QAM256	5
6	451000000	4.1	37.6	QAM256	6
7	459000000	4.1	38.6	QAM256	7
9	475000000	4	37.4	QAM256	9
10	483000000	4.3	37.6	QAM256	10
11	491000000	4.5	37.4	QAM256	11
12	499000000	4.6	37.6	QAM256	12
13	507000000	5	38.6	QAM256	13
14	515000000	5.1	38.6	QAM256	14
15	523000000	5.4	38.6	QAM256	15
16	531000000	5.5	38.3	QAM256	16
17	539000000	5.7	38.6	QAM256	17
18	547000000	5.8	38.6	QAM256	18
19	555000000	6	38.6	QAM256	19
20	563000000	5.9	38.6	QAM256	20
21	571000000	6.1	38.6	QAM256	21
22	579000000	6.2	38.6	QAM256	22
23	587000000	6.2	37.4	QAM256	23
24	595000000	6	37.6	QAM256	24
25	603000000	5.9	37.6	QAM256	25
26	611000000	5.6	37.6	QAM256	26
27	619000000	5.7	37.6	QAM256	27
28	627000000	5.5	37.6	QAM256	28
29	635000000	5.6	37.6	QAM256	29
30	643000000	5.6	37.6	QAM256	30
31	651000000	5.7	37.6	QAM256	31

3.0 Downstream channels

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

8	Locked	37.636276	34582	0
1	Locked	38.983261	9606	0
2	Locked	38.983261	17013	0
3	Locked	38.605377	52712	0
4	Locked	38.605377	6735	0
5	Locked	38.605377	11101	0
6	Locked	37.636276	21632	0
7	Locked	38.605377	38751	0
9	Locked	37.355988	6491	0
10	Locked	37.636276	12445	0
11	Locked	37.355988	17523	0
12	Locked	37.636276	0	0
13	Locked	38.605377	1	0
14	Locked	38.605377	0	0
15	Locked	38.605377	0	0
16	Locked	38.257755	0	0
17	Locked	38.605377	0	0
18	Locked	38.605377	15996	0
19	Locked	38.605377	0	0
20	Locked	38.605377	34	0
21	Locked	38.605377	1	0
22	Locked	38.605377	0	0
23	Locked	37.355988	0	0
24	Locked	37.636276	0	0
25	Locked	37.636276	0	0
26	Locked	37.636276	0	0
27	Locked	37.636276	0	0
28	Locked	37.636276	1	0
29	Locked	37.636276	0	0
30	Locked	37.636276	0	0
31	Locked	37.636276	0	0

3.1 Downstream channels

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

159

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)

159

Locked

39

3.9

5836128

0

[iveivan]

3.0 Upstream channels

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

1	25800000	41.5	5120 KSym/sec	64QAM	6
2	32600000	42.3	5120 KSym/sec	64QAM	5
3	39400000	42.8	5120 KSym/sec	16QAM	4
4	46200000	43.3	5120 KSym/sec	64QAM	3

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	US_TYPE_STDMA	0	0	0	0
2	US_TYPE_STDMA	0	0	0	0
3	US_TYPE_STDMA	0	0	0	0
4	US_TYPE_STDMA	0	0	0	0

[Matthew_ML · Accepted solution]

Hey iveivan, thank you for reaching out and I am sorry to see you are having random drop in speeds. 

Thank you for sending these screenshots over they are really helpful.

What I would like do is go through some further checks with you via a PM, would this be okay?

Please look out for the purple envelope. Thanks 

[iveivan]

Hi Matthew,

I just sent you a PM, if you can help me would be great.

[iveivan]

Latest prints:

3.0 Downstream channels

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

1	411000000	6.2	34.5	QAM256	1
2	419000000	6.1	38.6	QAM256	2
3	427000000	5.7	39	QAM256	3
4	435000000	5.5	38.6	QAM256	4
5	443000000	5.2	34.5	QAM256	5
6	451000000	4.9	34	QAM256	6
7	459000000	4.8	37.6	QAM256	7
8	467000000	4.5	37.6	QAM256	8
9	475000000	4.6	34	QAM256	9
10	483000000	4.7	33.5	QAM256	10
11	491000000	4.7	37.6	QAM256	11
12	499000000	4.9	37.6	QAM256	12
13	507000000	5.1	38.6	QAM256	13
14	515000000	5.2	38.6	QAM256	14
15	523000000	5.5	38.6	QAM256	15
16	531000000	5.6	38.6	QAM256	16
17	539000000	5.8	38.6	QAM256	17
18	547000000	5.9	37.6	QAM256	18
19	555000000	6.1	38.6	QAM256	19
20	563000000	6.2	38.6	QAM256	20
21	571000000	6.4	38.6	QAM256	21
22	579000000	6.5	38.6	QAM256	22
23	587000000	6.5	38.6	QAM256	23
24	595000000	6.3	37.6	QAM256	24
25	603000000	6.2	37.4	QAM256	25
26	611000000	6	37.6	QAM256	26
27	619000000	5.9	37.6	QAM256	27
28	627000000	6	37.6	QAM256	28
29	635000000	6	37.4	QAM256	29
30	643000000	6	37.6	QAM256	30
31	651000000	6.1	37.4	QAM256	31

3.0 Downstream channels

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

1	Locked	34.483570	1032332	4272925
2	Locked	38.605377	3007286	0
3	Locked	38.983261	3230885	0
4	Locked	38.605377	3182537	0
5	Locked	34.483570	1114921	4189409
6	Locked	33.956509	1556926	3743520
7	Locked	37.636276	3142227	0
8	Locked	37.636276	3111137	0
9	Locked	33.956509	1400438	3901459
10	Locked	33.486542	1573055	3727968
11	Locked	37.636276	3143001	0
12	Locked	37.636276	0	0
13	Locked	38.605377	0	0
14	Locked	38.605377	0	0
15	Locked	38.605377	1	0
16	Locked	38.605377	0	0
17	Locked	38.605377	3	0
18	Locked	37.636276	602693	0
19	Locked	38.605377	0	0
20	Locked	38.605377	291075	0
21	Locked	38.605377	1	0
22	Locked	38.605377	2	0
23	Locked	38.605377	0	0
24	Locked	37.636276	1	0
25	Locked	37.355988	1	0
26	Locked	37.636276	1	0
27	Locked	37.636276	5	0
28	Locked	37.636276	1	0
29	Locked	37.355988	0	0
30	Locked	37.636276	2	0
31	Locked	37.355988	4	0

3.1 Downstream channels

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

159

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)

159

Locked

39

4.5

59695096

0