Latency, packet loss and "No ranging response received"

[Rogueywon]

I'm experiencing very high latency spikes during peak hours (to over 300m/s at times), packet loss and getting "no ranging response received" errors in my router log. The severity of the problem can be affected by small physical movements to my superhub. I've had this problem intermittently before, including with a previous hub, and strongly suspect the problem is a dodgy coax cable that needs replacing.

Cable Modem StatusItem Status CommentsChannel Overview Downstream Upstream

Cable Modem Status	Online	DOCSIS 3.1
Primary downstream channel	Locked	SC-QAM
DOCSIS 3.0 channels	31	4
DOCSIS 3.1 channels	1	0

3.0 Downstream channels

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

26	338750000	7.800003	40.366287	QAM256	26
1	138750000	7.300003	38.605377	QAM256	1
2	146750000	7.300003	38.983261	QAM256	2
3	154750000	6.699997	38.983261	QAM256	3
4	162750000	6.599998	38.983261	QAM256	4
5	170750000	6.800003	38.983261	QAM256	5
6	178750000	7.000000	40.366287	QAM256	6
7	186750000	7.000000	40.366287	QAM256	7
8	194750000	6.699997	38.983261	QAM256	8
9	202750000	6.599998	38.605377	QAM256	9
10	210750000	6.599998	38.983261	QAM256	10
11	218750000	6.699997	40.366287	QAM256	11
12	226750000	6.599998	38.983261	QAM256	12
13	234750000	6.500000	38.605377	QAM256	13
14	242750000	6.400002	38.983261	QAM256	14
15	250750000	6.400002	38.983261	QAM256	15
16	258750000	6.300003	40.366287	QAM256	16
17	266750000	6.599998	40.366287	QAM256	17
18	274750000	7.099998	40.366287	QAM256	18
19	282750000	7.199997	38.983261	QAM256	19
20	290750000	7.400002	38.983261	QAM256	20
21	298750000	6.900002	40.366287	QAM256	21
22	306750000	7.099998	40.366287	QAM256	22
23	314750000	7.500000	40.366287	QAM256	23
24	322750000	8.099998	40.366287	QAM256	24
25	330750000	8.400002	40.946209	QAM256	25
27	346750000	7.500000	40.946209	QAM256	27
28	354750000	7.300003	40.366287	QAM256	28
29	362750000	7.400002	38.983261	QAM256	29
30	370750000	7.199997	40.366287	QAM256	30
31	378750000	6.500000	38.983261	QAM256	31

3.0 Downstream channels

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

26	Locked	40.366287	0	0
1	Locked	38.605377	0	0
2	Locked	38.983261	7	0
3	Locked	38.983261	0	0
4	Locked	38.983261	0	0
5	Locked	38.983261	0	0
6	Locked	40.366287	0	0
7	Locked	40.366287	0	0
8	Locked	38.983261	0	0
9	Locked	38.605377	0	0
10	Locked	38.983261	0	0
11	Locked	40.366287	8	0
12	Locked	38.983261	0	0
13	Locked	38.605377	3	0
14	Locked	38.983261	0	0
15	Locked	38.983261	0	0
16	Locked	40.366287	0	0
17	Locked	40.366287	0	0
18	Locked	40.366287	0	0
19	Locked	38.983261	0	0
20	Locked	38.983261	0	0
21	Locked	40.366287	0	0
22	Locked	40.366287	0	0
23	Locked	40.366287	7	0
24	Locked	40.366287	7	0
25	Locked	40.946209	7	0
27	Locked	40.946209	0	0
28	Locked	40.366287	0	0
29	Locked	38.983261	5	0
30	Locked	40.366287	0	0
31	Locked	38.983261	0	0

3.1 Downstream channels

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

159

94

4K

1840

QAM4096

424

3.1 Downstream channels

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

159

Locked

43

7.2

2777703

0

[Rogueywon]

https://www.thinkbroadband.com/broadband/monitoring/quality/share/027cf2318143b29964a157148ced30ef5e...

[Reece_MH]

Hi Rogueywon,

Thanks for your post, and a warm welcome back to the Forums.

I'm sorry to hear you've been having problems with your Broadband service. I've had a look at things on our side, and I can see the fluctuations you have mentioned, but these appear to have eased over the last few days, however some of your Power levels are out of specification, and will need a Technician to resolve them.

Please look out for my private message in the top-right, purple envelope.

Thanks,