on 05-01-2022 18:08
Hi all,
Suffering with some latency spikes, please could someone have a look at my Downstream/Upsteam channels - also if someone could explain it, that would be even better
Thanks!
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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 |
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 | 139000000 | 18.9 | 40.4 | QAM256 | 1 |
2 | 147000000 | 18.9 | 40.9 | QAM256 | 2 |
3 | 155000000 | 18.7 | 40.4 | QAM256 | 3 |
4 | 163000000 | 18.8 | 40.4 | QAM256 | 4 |
5 | 171000000 | 18.7 | 40.9 | QAM256 | 5 |
6 | 179000000 | 18.5 | 40.4 | QAM256 | 6 |
7 | 187000000 | 18.6 | 40.9 | QAM256 | 7 |
8 | 195000000 | 18.7 | 40.9 | QAM256 | 8 |
9 | 203000000 | 18.5 | 40.9 | QAM256 | 9 |
10 | 211000000 | 18.5 | 40.4 | QAM256 | 10 |
11 | 219000000 | 18.5 | 40.9 | QAM256 | 11 |
12 | 227000000 | 18.2 | 40.4 | QAM256 | 12 |
13 | 235000000 | 17.9 | 40.4 | QAM256 | 13 |
14 | 243000000 | 17.4 | 40.9 | QAM256 | 14 |
15 | 251000000 | 16.8 | 40.4 | QAM256 | 15 |
16 | 259000000 | 17.3 | 40.4 | QAM256 | 16 |
17 | 267000000 | 17.9 | 40.9 | QAM256 | 17 |
18 | 275000000 | 18.5 | 40.4 | QAM256 | 18 |
19 | 283000000 | 18.7 | 40.9 | QAM256 | 19 |
20 | 291000000 | 19.4 | 40.9 | QAM256 | 20 |
21 | 299000000 | 19.6 | 40.9 | QAM256 | 21 |
22 | 307000000 | 18.9 | 40.4 | QAM256 | 22 |
23 | 315000000 | 18.7 | 40.4 | QAM256 | 23 |
24 | 323000000 | 19.3 | 40.4 | QAM256 | 24 |
25 | 331000000 | 19.4 | 40.9 | QAM256 | 25 |
26 | 339000000 | 19.4 | 40.9 | QAM256 | 26 |
27 | 347000000 | 19.7 | 40.4 | QAM256 | 27 |
28 | 355000000 | 19.8 | 40.9 | QAM256 | 28 |
29 | 363000000 | 18.8 | 40.4 | QAM256 | 29 |
30 | 371000000 | 18.2 | 40.9 | QAM256 | 30 |
31 | 379000000 | 18.7 | 40.4 | QAM256 | 31 |
Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
159 | 96 | 4K | 1880 | QAM4096 | 759 |
Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)
159 | Locked | 41 | 18.8 | 1489580 | 0 |
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 | 32600000 | 32 | 5120 KSym/sec | 64QAM | 3 |
2 | 25800000 | 32 | 5120 KSym/sec | 64QAM | 4 |
3 | 39400000 | 32 | 5120 KSym/sec | 64QAM | 2 |
4 | 46200000 | 32 | 5120 KSym/sec | 64QAM | 1 |
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 |
Answered! Go to Answer
05-01-2022 18:25 - edited 05-01-2022 18:26
Power levels are way too high on downstream, nearly double the maximum. Probably need a technician’s visit to rectify.
Check with Area faults on 0800 561 0061 If you have a VM landline 150 this goes down to post code level. You could also try the web page http://www.virginmedia.com/servicechecker
If no faults found:
Call Customer Services on 0345 454 1111/150 if you have a VM landline or wait a day or two for a VM staff member to get to your post.
05-01-2022 18:25 - edited 05-01-2022 18:26
Power levels are way too high on downstream, nearly double the maximum. Probably need a technician’s visit to rectify.
Check with Area faults on 0800 561 0061 If you have a VM landline 150 this goes down to post code level. You could also try the web page http://www.virginmedia.com/servicechecker
If no faults found:
Call Customer Services on 0345 454 1111/150 if you have a VM landline or wait a day or two for a VM staff member to get to your post.
on 05-01-2022 18:38