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alexwarren
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Frequent dropouts again

We're experiencing frequent dropouts again (just like a couple of years ago as I posted here), with exactly the same symptoms - on both wired and wireless, the dropouts occur for a few seconds, especially noticeable if streaming audio or video. Sometimes an hour can go by with no dropouts, then it can be really flakey for half an hour.

The dropouts coincide with these messages in the Hub network log: 

  • SYNC Timing Synchronization failure - Loss of Sync
  • RCS Partial Service

Example log from this morning with MAC removed:

2018-12-24 07:38:17.00	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 07:38:17.00	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 07:44:46.00	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 07:44:46.00	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 07:46:11.00	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 07:46:11.00	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 07:46:32.00	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 07:46:32.00	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 08:12:09.00	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 08:12:09.00	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 08:12:20.00	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 08:12:20.00	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 08:22:55.00	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 08:22:55.00	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 08:24:08.00	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 08:24:08.00	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 08:24:41.00	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 08:24:41.00	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 08:25:02.00	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2018-12-24 08:25:32.00	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

Downstream info:

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

1298750000-2.238256 qam21
2322750000-3.238256 qam24
3314750000-338256 qam23
4306750000-2.538256 qam22
5290750000-2.938256 qam20
6282750000-3.738256 qam19
7274750000-2.538256 qam18
8266750000-240256 qam17
9258750000-338256 qam16
10250750000-5.238256 qam15
11242750000-538256 qam14
12234750000-3.938256 qam13
13226750000-334256 qam12
14218750000-3.731256 qam11
15210750000-435256 qam10
16202750000-338256 qam9
17194750000-3.238256 qam8
18186750000-3.238256 qam7
19178750000-3.738256 qam6
20170750000-2.738256 qam5
21162750000-4.237256 qam4
22154750000-637256 qam3
23146750000-3.937256 qam2
24138750000-1.438256 qam1



Downstream bonded channels

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

1Locked38.9195182241238
2Locked38.6193538263669
3Locked38.9186011263736
4Locked38.9183504255682
5Locked38.9203820262282
6Locked38.9221849294472
7Locked38.9244029346294
8Locked40.3258227429969
9Locked38.6275633451930
10Locked38.9295577413443
11Locked38.9306710420989
12Locked38.9298006390440
13Locked34.9363760439418
14Locked32554414513044696
15Locked35.5389109677802
16Locked38.9281835264701
17Locked38.6301235267411
18Locked38.9307726267754
19Locked38.9337525242596
20Locked38.9367081281099
21Locked37.3437503275364
22Locked37.68392629749
23Locked37.6569146426854
24Locked38.9578845413958

 

Upstream info:

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

15370000054512064 qam4
22740000051.5512064 qam3



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0030
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griffin
Alessandro Volta
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Message 2 of 10
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Re: Frequent dropouts again

You have poor SNR on one of the downstream channels, however, the high amount of RS errors could indicate an intermittent SNR problem across the downstream, if the errors are not a historical build up. The logs only cover about an hour, during which time it looks like the downstream is in some distress.

One of your upstream channels has maxxed out as well

It may be worth checking the coax cable for kinks and  obvious signs of damage and all connectors are hand tight.

You will need to contact VM for resolution, either by waiting here about a week until a VM Forum Team Member picks up the thread, or give them a call on 150 from a VM line or 0345 454 1111 for a quicker response.

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Moderator (Retired) Ty_S
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Message 3 of 10
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Re: Frequent dropouts again

Hi alexwarren

I'm sorry to hear of these issues you've experienced. I’ve sent you a private message (purple envelope, top right corner) for some additional information to help me look into this further for you.

Kind regards,
 


The do's and don'ts. Keep the community welcoming for all. Follow the house rules


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Forum Team (Retired) Jen_A
Forum Team (Retired)
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Message 4 of 10
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Re: Frequent dropouts again

Hi alexwarren,

Hope you don't mind but I've just picked up your reply to Ty_S as he's not in today.
Tests if your connection reveal:

  • Hub only locking onto 1 (should be 2) upstream channel with a high power level of 57dBmV.
  • Low downstream power levels:
    -5.5dBmV to -9.5dBmV
  • Low d/s modem SNR on some channels: 
    38.9dB to 24.1dB

I've replied to your message with a request for engineer appointment times - there is no network issue so the cause must be localised.

Regards,


Jen
Forum Team



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alexwarren
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Message 5 of 10
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Re: Frequent dropouts again

An engineer visited on Tuesday and replaced a load of connectors and fixed up the power levels. He was sure this would solve the problem... but it hasn't. Still getting these drop-outs.

I restarted the router about 12 hours ago and there are a lot of Post RS errors on the downstream.

Downstream bonded channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 298750000 7.9 38 256 qam 21
2 426750000 7 40 256 qam 28
3 418750000 6.8 40 256 qam 27
4 410750000 7.4 38 256 qam 26
5 322750000 7.6 38 256 qam 24
6 306750000 7.8 38 256 qam 22
7 290750000 7.8 40 256 qam 20
8 402750000 7.6 40 256 qam 25
9 314750000 8 40 256 qam 23
10 282750000 7.5 38 256 qam 19
11 274750000 8.3 38 256 qam 18
12 266750000 8.5 38 256 qam 17
13 258750000 8 38 256 qam 16
14 250750000 7.9 40 256 qam 15
15 242750000 7.6 40 256 qam 14
16 234750000 8 38 256 qam 13
17 226750000 8.5 38 256 qam 12
18 218750000 8.5 38 256 qam 11
19 210750000 8.5 38 256 qam 10
20 202750000 8.3 40 256 qam 9
21 194750000 8.5 38 256 qam 8
22 186750000 8.9 40 256 qam 7
23 178750000 9.1 38 256 qam 6
24 170750000 8.8 38 256 qam 5


Downstream bonded channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 Locked 38.9 27640 64967
2 Locked 40.3 17366 49259
3 Locked 40.3 17390 40925
4 Locked 38.6 18269 33615
5 Locked 38.9 27393 68339
6 Locked 38.9 25869 65125
7 Locked 40.3 30711 62869
8 Locked 40.3 19745 31731
9 Locked 40.3 25718 68519
10 Locked 38.6 35167 66920
11 Locked 38.9 38135 79636
12 Locked 38.9 42618 83420
13 Locked 38.9 48882 82181
14 Locked 40.3 56310 79583
15 Locked 40.3 61898 87117
16 Locked 38.9 63134 80666
17 Locked 38.9 59025 82756
18 Locked 38.9 58540 78754
19 Locked 38.9 60096 76354
20 Locked 40.3 64126 58210
21 Locked 38.9 68466 64934
22 Locked 40.3 73244 58920
23 Locked 38.9 83600 62946
24 Locked 38.6 104733 65364


Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 45800000 40 5120 64 qam 1
2 53700000 40 5120 64 qam 4
3 27400000 40 5120 64 qam 3
4 35800000 40 5120 64 qam 2

 

Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 ATDMA 0 0 0 0
2 ATDMA 0 0 0 0
3 ATDMA 0 0 0 0
4 ATDMA 0 0 0 0


Network Log
Time Priority Description
2019-02-16 02:51:07.00 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 02:51:07.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 03:19:33.00 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 03:19:33.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 03:46:47.00 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 03:46:47.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 03:54:16.00 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 03:54:16.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 04:27:43.00 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 04:27:43.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 04:29:05.00 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 04:31:48.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 04:50:56.00 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 04:50:56.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 04:53:30.00 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 04:53:30.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 08:08:09.00 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 08:08:09.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 08:08:11.00 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-16 08:08:11.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

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alexwarren
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Message 6 of 10
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Re: Frequent dropouts again

Just to update as the figures seem to have changed quite a bit since Saturday (though Sunday afternoon as you can see from the logs we didn't have any dropouts)

Downstream bonded channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 298750000 2.7 38 256 qam 21
2 426750000 3.5 40 256 qam 28
3 418750000 3.5 38 256 qam 27
4 410750000 4.5 38 256 qam 26
5 402750000 5 38 256 qam 25
6 322750000 2.4 38 256 qam 24
7 314750000 2.7 38 256 qam 23
8 306750000 2.2 38 256 qam 22
9 290750000 2.5 38 256 qam 20
10 282750000 1.9 38 256 qam 19
11 274750000 1.9 38 256 qam 18
12 266750000 1.5 38 256 qam 17
13 258750000 1.2 38 256 qam 16
14 250750000 2 38 256 qam 15
15 242750000 1.2 38 256 qam 14
16 234750000 2 38 256 qam 13
17 218750000 2.7 31 256 qam 11
18 210750000 3.2 33 256 qam 10
19 202750000 3.5 38 256 qam 9
20 194750000 3.9 38 256 qam 8
21 186750000 4.5 38 256 qam 7
22 178750000 4.5 38 256 qam 6
23 170750000 4.3 37 256 qam 5
24 226750000 2.5 31 256 qam 12


Downstream bonded channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 Locked 38.9 778894 1462001
2 Locked 40.3 468004 509553
3 Locked 38.6 470973 331846
4 Locked 38.6 493004 288809
5 Locked 38.9 534998 294915
6 Locked 38.6 745730 1572937
7 Locked 38.6 737645 1614190
8 Locked 38.6 725136 1556928
9 Locked 38.9 807924 1533692
10 Locked 38.9 911314 1585369
11 Locked 38.9 988343 2217674
12 Locked 38.6 1025603 2489837
13 Locked 38.6 1095162 2358488
14 Locked 38.9 1115603 2191005
15 Locked 38.9 1211374 2313377
16 Locked 38.6 1199388 2148658
17 Locked 31.4 283538678 7100637
18 Locked 33.4 26477367 36983702
19 Locked 38.9 7140436 1449440
20 Locked 38.6 12324158 1583354
21 Locked 38.6 1308778 1311560
22 Locked 38.6 1375517 1351435
23 Locked 37.6 2538583 1311601
24 Locked 32.3 58149297 8355952


Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 45800000 51 5120 64 qam 1
2 53700000 50.3 5120 64 qam 4
3 27400000 47.5 5120 64 qam 3
4 35800000 45.5 5120 64 qam 2


Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 ATDMA 0 0 2 0
2 ATDMA 0 0 6 0
3 ATDMA 0 0 5 0
4 ATDMA 0 0 2 0

Network Log
Time Priority Description
2019-02-17 11:08:39.00 Warning! Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:08:52.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:09:03.00 Warning! Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:09:08.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:09:23.00 Warning! Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:09:55.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:10:05.00 Warning! Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:10:09.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:10:32.00 Warning! Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:10:36.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:11:43.00 Warning! Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:11:45.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:12:09.00 Warning! Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:12:13.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:12:30.00 Warning! Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:12:33.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:24:02.00 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 11:24:02.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 21:35:54.00 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2019-02-17 21:35:57.00 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

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Message 7 of 10
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Re: Frequent dropouts again

Hi alexwarren,

Thanks for sharing this with us, we do need to look into this a bit further for you. 

I will send you a PM asking for the details we would need from you to be able to do this. If you can reply to this message, we will be more than happy to help.

Thanks

Lindsey_C

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alexwarren
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Message 8 of 10
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Re: Frequent dropouts again

Resurrecting this again - after the last post back in February, an engineer came and replaced some connectors outside. After that, everything has been working nicely, but in the last couple of days we're seeing these frequent dropouts all over again. It's the same pattern as before, with lots of "SYNC Timing Synchronization failure - Loss of Sync" and "RCS Partial Service" messages in the logs.

Frankly getting a bit sick of this 😞

Downstream bonded channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 298750000 7 40 256 qam 21
2 138750000 8.4 38 256 qam 1
3 146750000 7.4 38 256 qam 2
4 154750000 7.5 38 256 qam 3
5 162750000 7.8 38 256 qam 4
6 170750000 8.3 38 256 qam 5
7 178750000 8.4 40 256 qam 6
8 186750000 8 40 256 qam 7
9 194750000 7.5 40 256 qam 8
10 202750000 7.4 40 256 qam 9
11 210750000 7.6 38 256 qam 10
12 218750000 7.8 40 256 qam 11
13 226750000 7.8 39 256 qam 12
14 234750000 7.1 38 256 qam 13
15 242750000 6.9 40 256 qam 14
16 250750000 7 40 256 qam 15
17 258750000 7 40 256 qam 16
18 266750000 7.5 40 256 qam 17
19 274750000 7.3 38 256 qam 18
20 282750000 6.6 38 256 qam 19
21 290750000 6.8 40 256 qam 20
22 306750000 6.8 38 256 qam 22
23 314750000 7.1 40 256 qam 23
24 322750000 6.6 38 256 qam 24


Downstream bonded channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 Locked 40.3 99790 276965
2 Locked 38.9 702460 479382
3 Locked 38.6 688239 433619
4 Locked 38.9 593514 356602
5 Locked 38.9 472231 316389
6 Locked 38.6 370032 241166
7 Locked 40.3 297608 241429
8 Locked 40.3 269819 219578
9 Locked 40.3 251871 249074
10 Locked 40.3 239727 232209
11 Locked 38.9 489691 712725
12 Locked 40.3 223909 248956
13 Locked 38.9 220603 267499
14 Locked 38.9 236852 351138
15 Locked 40.3 240947 342985
16 Locked 40.3 218354 299768
17 Locked 40.3 184952 314586
18 Locked 40.3 159960 312163
19 Locked 38.9 143456 306666
20 Locked 38.9 125539 275821
21 Locked 40.3 110094 252035
22 Locked 38.9 97855 287148
23 Locked 40.3 97855 309774
24 Locked 38.6 106829 307548


Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 45799976 4.075 5120 64 qam 1
2 53700051 4.1 5120 64 qam 4
3 27400007 4.1 5120 64 qam 3
4 35800019 4.05 5120 64 qam 2


Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 ATDMA 0 0 0 0
2 ATDMA 0 0 0 0
3 ATDMA 0 0 0 0
4 ATDMA 0 0 0 0

Network Log
Time Priority Description
30/08/2019 18:29:29 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:29:29 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:29:39 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:29:40 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:30:16 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:30:16 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:30:22 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:30:22 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:30:25 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:30:25 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:30:30 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:30:30 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:30:36 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:30:36 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:31:37 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:31:37 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:31:55 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:31:55 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:32:12 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/08/2019 18:32:12 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

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alexwarren
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Message 9 of 10
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Re: Frequent dropouts again

Just to add, I rebooted the hub yesterday, so the RS errors are the buildup over the last 24 hours or so.

Having said that, the previous engineer was quite sure that they don't mean anything ¯\_(ツ)_/¯

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Forum Team
Forum Team
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Message 10 of 10
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Re: Frequent dropouts again

Hi alexwarren. 

 

Thanks for your post, I'm sorry to hear you're experiencing the same issues again.

 

I've run a health check and need a few more details from you, I've popped you over a private message for this.

 

Get back to me when you can,

 

Alex_Rm

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