We've been having regular broadband dropouts for a few days. VM's status tools says there's no problem in our area, but when running the connection check tool it reports there is a problem and an engineer is working on it. However, nothing has changed since Thursday.
When checking the router logs, 13 of the 22 channels have a SNR less than the recommended 34dB. Power levels look OK, at 6-8dBmV. Lots of pre- and post- RS errors.
Nothing has changed at our end and things were working earlier this week - what could be the issue?
Downstream bonded channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 | 331000000 | 7.6 | 28 | 256 qam | 25 |
2 | 211000000 | 7.8 | 28 | 256 qam | 10 |
3 | 219000000 | 7.6 | 35 | 256 qam | 11 |
4 | 227000000 | 7.4 | 37 | 256 qam | 12 |
5 | 235000000 | 7 | 33 | 256 qam | 13 |
6 | 243000000 | 6.5 | 35 | 256 qam | 14 |
7 | 251000000 | 6.9 | 32 | 256 qam | 15 |
8 | 259000000 | 7.1 | 35 | 256 qam | 16 |
9 | 267000000 | 7.5 | 34 | 256 qam | 17 |
10 | 275000000 | 7.5 | 34 | 256 qam | 18 |
11 | 283000000 | 7.5 | 33 | 256 qam | 19 |
12 | 291000000 | 7.5 | 32 | 256 qam | 20 |
13 | 299000000 | 7.6 | 28 | 256 qam | 21 |
14 | 307000000 | 7.5 | 33 | 256 qam | 22 |
15 | 315000000 | 7.5 | 26 | 256 qam | 23 |
16 | 339000000 | 7.6 | 25 | 256 qam | 26 |
17 | 347000000 | 7.6 | 30 | 256 qam | 27 |
18 | 355000000 | 7.5 | 34 | 256 qam | 28 |
19 | 363000000 | 7 | 29 | 256 qam | 29 |
20 | 371000000 | 6.1 | 27 | 256 qam | 30 |
21 | 379000000 | 6.4 | 32 | 256 qam | 31 |
22 | 387000000 | 6.4 | 33 | 256 qam | 32 |
Downstream bonded channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 | Locked | 28.4 | 8273214 | 0 |
2 | Locked | 28.3 | 5975688 | 117 |
3 | Locked | 35.7 | 122 | 43 |
4 | Locked | 37.3 | 140 | 7 |
5 | Locked | 33.4 | 155 | 0 |
6 | Locked | 35.7 | 108 | 16 |
7 | Locked | 32.4 | 366 | 0 |
8 | Locked | 35.7 | 113 | 0 |
9 | Locked | 34.3 | 97 | 6 |
10 | Locked | 34.3 | 97 | 0 |
11 | Locked | 33 | 174 | 0 |
12 | Locked | 32.5 | 469 | 4 |
13 | Locked | 28.9 | 2848074 | 13 |
14 | Locked | 33.3 | 111 | 0 |
15 | Locked | 26.3 | 49312098 | 2751009 |
16 | Locked | 25.6 | 41811160 | 15459401 |
17 | Locked | 30.8 | 67124 | 0 |
18 | Locked | 34.3 | 83 | 0 |
19 | Locked | 29.6 | 1095046 | 0 |
20 | Locked | 27.7 | 20561940 | 86 |
21 | Locked | 32.4 | 986 | 0 |
22 | Locked | 33.8 | 79 | 0 |