26-05-2022 13:26 - edited 26-05-2022 13:27
Hello there. For the last month we are experiencing broadband outages and drops everyday.
Usually while checking Hub logs quickly I can notice a clear connection between Downstream Channels power drops and RCS errors appearing, however signal then gets back to normal until next outage. We've already had 3 engineer visits (last one yesterday, 4-7pm, said it was fine).
And after the last guy left we've experienced outage again around 10pm.
Outages are not so long, but extremely annoying because they are enough to disconnect everything.
BQM link:
Last outages happened just an hour and 30 minutes ago.
Answered! Go to Answer
on 27-05-2022 11:38
Huge Post-RS increase just in one night
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 | 387000000 | 4.6 | 37 | 256 qam | 32 |
2 | 203000000 | 4.6 | 36 | 256 qam | 9 |
3 | 211000000 | 4.5 | 35 | 256 qam | 10 |
4 | 219000000 | 4.9 | 36 | 256 qam | 11 |
5 | 227000000 | 4.9 | 36 | 256 qam | 12 |
6 | 235000000 | 4.5 | 36 | 256 qam | 13 |
7 | 243000000 | 4.1 | 36 | 256 qam | 14 |
8 | 251000000 | 4 | 36 | 256 qam | 15 |
9 | 259000000 | 4.5 | 36 | 256 qam | 16 |
10 | 267000000 | 4.9 | 36 | 256 qam | 17 |
11 | 275000000 | 4.4 | 36 | 256 qam | 18 |
12 | 283000000 | 4.5 | 37 | 256 qam | 19 |
13 | 291000000 | 4.9 | 37 | 256 qam | 20 |
14 | 299000000 | 5.5 | 37 | 256 qam | 21 |
15 | 307000000 | 5.5 | 37 | 256 qam | 22 |
16 | 315000000 | 5.3 | 37 | 256 qam | 23 |
17 | 323000000 | 5.3 | 37 | 256 qam | 24 |
18 | 331000000 | 5.5 | 37 | 256 qam | 25 |
19 | 339000000 | 5.5 | 37 | 256 qam | 26 |
20 | 347000000 | 5.3 | 37 | 256 qam | 27 |
21 | 355000000 | 4.9 | 37 | 256 qam | 28 |
22 | 363000000 | 4.9 | 37 | 256 qam | 29 |
23 | 371000000 | 5 | 37 | 256 qam | 30 |
24 | 379000000 | 5 | 37 | 256 qam | 31 |
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 | Locked | 37.6 | 162 | 457 |
2 | Locked | 36.3 | 436 | 498 |
3 | Locked | 35.7 | 472 | 504 |
4 | Locked | 36.6 | 368 | 433 |
5 | Locked | 36.6 | 323 | 461 |
6 | Locked | 36.6 | 319 | 640 |
7 | Locked | 36.3 | 299 | 479 |
8 | Locked | 36.6 | 285 | 559 |
9 | Locked | 36.3 | 299 | 540 |
10 | Locked | 36.6 | 288 | 447 |
11 | Locked | 36.6 | 273 | 393 |
12 | Locked | 37.3 | 257 | 420 |
13 | Locked | 37.6 | 246 | 447 |
14 | Locked | 37.6 | 240 | 394 |
15 | Locked | 37.6 | 236 | 347 |
16 | Locked | 37.3 | 204 | 350 |
17 | Locked | 37.6 | 242 | 401 |
18 | Locked | 37.6 | 221 | 490 |
19 | Locked | 37.6 | 202 | 495 |
20 | Locked | 37.6 | 192 | 393 |
21 | Locked | 37.6 | 190 | 429 |
22 | Locked | 37.3 | 201 | 471 |
23 | Locked | 37.6 | 156 | 571 |
24 | Locked | 37.3 | 152 | 611 |
on 27-05-2022 11:50
on 27-05-2022 14:21
on 27-05-2022 14:30
Thanks again for help. Hope that 4th tech guy will solve it 😄
27-05-2022 14:31 - edited 27-05-2022 14:36
Not the latest logs unfortunately, though in some cases it drops like from 5-6 to 3-4 downstream (and goes up from 38-39 to 42-45 upstream) and my connection is lost, though that power level is within DOCSIS 3 specs
on 27-05-2022 14:35
on 27-05-2022 14:39
I will try my best to catch the outage moment and post the logs here
on 27-05-2022 15:02
on 27-05-2022 15:10
Everything "coax" (wall to hub and outside box) were nice and tight. My own ethernet cables seem to be fine too (hub to my router, ax50 and router to PC), also should state that my ethernet cable did not change since it began to drop out (by that I mean that it was fine before with that cable). That is not a big deal, but I don't think the problem is on my side, not sure of course.
on 27-05-2022 18:52
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 | 387000000 | 3 | 37 | 256 qam | 32 |
2 | 203000000 | 3.2 | 36 | 256 qam | 9 |
3 | 211000000 | 2.7 | 36 | 256 qam | 10 |
4 | 219000000 | 3 | 36 | 256 qam | 11 |
5 | 227000000 | 3 | 36 | 256 qam | 12 |
6 | 235000000 | 2.9 | 36 | 256 qam | 13 |
7 | 243000000 | 2.5 | 36 | 256 qam | 14 |
8 | 251000000 | 2.5 | 37 | 256 qam | 15 |
9 | 259000000 | 3 | 36 | 256 qam | 16 |
10 | 267000000 | 3.7 | 37 | 256 qam | 17 |
11 | 275000000 | 3.4 | 37 | 256 qam | 18 |
12 | 283000000 | 2.7 | 37 | 256 qam | 19 |
13 | 291000000 | 2.7 | 37 | 256 qam | 20 |
14 | 299000000 | 3.4 | 37 | 256 qam | 21 |
15 | 307000000 | 3.7 | 37 | 256 qam | 22 |
16 | 315000000 | 3.5 | 37 | 256 qam | 23 |
17 | 323000000 | 3.7 | 37 | 256 qam | 24 |
18 | 331000000 | 3.9 | 38 | 256 qam | 25 |
19 | 339000000 | 4 | 37 | 256 qam | 26 |
20 | 347000000 | 3.7 | 37 | 256 qam | 27 |
21 | 355000000 | 3.4 | 37 | 256 qam | 28 |
22 | 363000000 | 3.4 | 37 | 256 qam | 29 |
23 | 371000000 | 3.5 | 37 | 256 qam | 30 |
24 | 379000000 | 3.5 | 37 | 256 qam | 31 |
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 | Locked | 37.6 | 162 | 457 |
2 | Locked | 36.3 | 436 | 498 |
3 | Locked | 35.7 | 472 | 504 |
4 | Locked | 36.6 | 368 | 433 |
5 | Locked | 36.6 | 323 | 461 |
6 | Locked | 36.6 | 319 | 640 |
7 | Locked | 36.3 | 299 | 479 |
8 | Locked | 36.6 | 285 | 559 |
9 | Locked | 36.3 | 299 | 540 |
10 | Locked | 36.6 | 288 | 447 |
11 | Locked | 36.6 | 273 | 393 |
12 | Locked | 37.3 | 257 | 420 |
13 | Locked | 37.6 | 246 | 447 |
14 | Locked | 37.6 | 240 | 394 |
15 | Locked | 37.6 | 236 | 347 |
16 | Locked | 37.3 | 204 | 350 |
17 | Locked | 37.6 | 242 | 401 |
18 | Locked | 37.6 | 221 | 490 |
19 | Locked | 37.6 | 202 | 495 |
20 | Locked | 37.6 | 192 | 393 |
21 | Locked | 37.6 | 190 | 429 |
22 | Locked | 37.3 | 201 | 471 |
23 | Locked | 37.6 | 156 | 571 |
24 | Locked | 37.3 | 152 | 611 |
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 | 46199998 | 48.8 | 5120 | 64 qam | 3 |
2 | 32599974 | 37.5 | 5120 | 64 qam | 5 |
3 | 39400000 | 48.8 | 5120 | 64 qam | 4 |
4 | 53700004 | 48.8 | 5120 | 64 qam | 2 |
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 | ATDMA | 0 | 0 | 0 | 0 |
2 | ATDMA | 0 | 0 | 23 | 0 |
3 | ATDMA | 0 | 0 | 8 | 0 |
4 | ATDMA | 0 | 0 | 0 | 0 |