on 15-07-2021 20:32
Hey folks,
Internets been crap for the last few months (ever since summer kicked in)
Power levels are getting as high as 10-11Db DS / 38Db US and then randomly plummeting to -3Db DS / 51Db US.
Because of this I'm getting constant T3 timeouts and connection drops. I've checked every coupler/connector on the wire and everything's tight so I don't think that's the problem. The only thing I can think of is that the cables degraded over time as it's been installed since 2001 back on an old Telewest line.
Here my BQM:
https://www.thinkbroadband.com/broadband/monitoring/quality/share/54a0bb0e093fb381fb1d47e0f486b7fe86b640e6-15-07-2021
Any advice would be greatly appreciated.
18-07-2021 20:47 - edited 18-07-2021 20:48
Well the engineer came round yesterday and re-did a connector on the cable that was a little dodgy and also added a 4Db attenuator and a suppressor. He also switched the hub out for a new one.
This seem to work fantastic for the first few hours after he left but after midnight everything went downhill again.
https://www.thinkbroadband.com/broadband/monitoring/quality/share/391f535ba4c2ec2600978f5dc6b0ff158b...
Downstream bonded channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 | 331000000 | 6.6 | 40 | 256 qam | 25 |
2 | 251000000 | 6 | 40 | 256 qam | 15 |
3 | 259000000 | 6 | 40 | 256 qam | 16 |
4 | 267000000 | 6 | 40 | 256 qam | 17 |
5 | 275000000 | 6 | 40 | 256 qam | 18 |
6 | 283000000 | 6 | 40 | 256 qam | 19 |
7 | 291000000 | 6.3 | 40 | 256 qam | 20 |
8 | 299000000 | 6.8 | 40 | 256 qam | 21 |
9 | 307000000 | 6.4 | 40 | 256 qam | 22 |
10 | 315000000 | 6.5 | 40 | 256 qam | 23 |
11 | 323000000 | 6.8 | 40 | 256 qam | 24 |
12 | 339000000 | 6.9 | 40 | 256 qam | 26 |
13 | 347000000 | 7 | 40 | 256 qam | 27 |
14 | 355000000 | 7 | 40 | 256 qam | 28 |
15 | 363000000 | 7 | 40 | 256 qam | 29 |
16 | 371000000 | 7.1 | 40 | 256 qam | 30 |
17 | 379000000 | 7.1 | 40 | 256 qam | 31 |
18 | 387000000 | 7 | 40 | 256 qam | 32 |
19 | 395000000 | 7 | 40 | 256 qam | 33 |
20 | 403000000 | 6.8 | 40 | 256 qam | 34 |
21 | 411000000 | 6.8 | 40 | 256 qam | 35 |
22 | 419000000 | 6.4 | 40 | 256 qam | 36 |
23 | 427000000 | 6.4 | 40 | 256 qam | 37 |
24 | 435000000 | 6.3 | 40 | 256 qam | 38 |
Downstream bonded channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 | Locked | 40.3 | 111 | 211 |
2 | Locked | 40.9 | 69 | 124 |
3 | Locked | 40.3 | 56 | 101 |
4 | Locked | 40.3 | 50 | 138 |
5 | Locked | 40.3 | 47 | 123 |
6 | Locked | 40.9 | 71 | 98 |
7 | Locked | 40.9 | 42 | 136 |
8 | Locked | 40.3 | 67 | 203 |
9 | Locked | 40.3 | 84 | 200 |
10 | Locked | 40.3 | 93 | 142 |
11 | Locked | 40.3 | 103 | 187 |
12 | Locked | 40.9 | 101 | 167 |
13 | Locked | 40.3 | 78 | 252 |
14 | Locked | 40.3 | 72 | 146 |
15 | Locked | 40.3 | 62 | 195 |
16 | Locked | 40.3 | 65 | 171 |
17 | Locked | 40.9 | 71 | 106 |
18 | Locked | 40.9 | 53 | 122 |
19 | Locked | 40.3 | 64 | 53 |
20 | Locked | 40.3 | 60 | 106 |
21 | Locked | 40.3 | 69 | 45 |
22 | Locked | 40.3 | 59 | 46 |
23 | Locked | 40.3 | 54 | 28 |
24 | Locked | 40.3 | 48 | 38 |
on 18-07-2021 20:48
Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 | 60300017 | 44 | 5120 | 64 qam | 1 |
2 | 39400036 | 42.5 | 5120 | 64 qam | 4 |
3 | 46200007 | 43.5 | 5120 | 64 qam | 3 |
4 | 53700004 | 43.5 | 5120 | 64 qam | 2 |
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 | ATDMA | 0 | 0 | 1 | 0 |
2 | ATDMA | 0 | 0 | 16 | 0 |
3 | ATDMA | 0 | 0 | 1 | 0 |
4 | ATDMA | 0 | 0 | 1 | 0 |
Network Log
Time Priority Description
18/07/2021 19:05:24 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/07/2021 19:05:24 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/07/2021 19:05:6 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/07/2021 15:38:26 | notice | LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/07/2021 14:24:31 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/07/2021 13:27:35 | notice | LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/07/2021 13:27:5 | Warning! | LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/07/2021 06:02:54 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
18/07/2021 05:45:3 | notice | LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
01/01/1970 00:01:42 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/07/2021 23:34:9 | notice | NOTICE ATOM is restarted as part of Self Healing Mechanism;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/07/2021 23:31:9 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/07/2021 23:31:9 | critical | Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/07/2021 23:30:29 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/07/2021 23:30:29 | critical | Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/07/2021 23:29:49 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/07/2021 23:29:49 | critical | Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/07/2021 23:29:10 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/07/2021 23:29:9 | critical | Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/07/2021 23:28:30 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
19-07-2021 11:26 - edited 19-07-2021 11:28
Your power levels are fine but still too many Post RS Errors and T3 Timeouts mate. You will need to get back on to them, it seems something is still not right 😞
on 19-07-2021 11:33
Hello neil3083
Sorry to hear this is still happening
Something doesn't seem quite right at all
I am more than happy to take a look at this for you
I will need to send you a private message to pass security
If you can check the purple envelope top right of your screen that would be great
Regards
Gareth_L
on 19-07-2021 12:17
Hey neil3083
Thanks for those details
Can you please let us know how the visit goes
Gareth_L
on 21-07-2021 12:47
Hi neil3083
Quick question
How did todays Technician visit go?
Gareth_L
on 21-07-2021 19:46
Hi,
The engineers where fantastic, they've inspected all the cable and replaced some extremely old connections, changed my position on the cabinet and rebalanced the power levels. So far it's looking good and I've not had any T3 timeouts so far.
I'll keep an eye on it for the next few days and report back if there's any problems
Many thanks for arranging everything.
on 22-07-2021 10:41
That's the best news of day neil3083
So happy it's been looked at and fixed for you
Have a good rest of the day
Gareth_L