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Connection SYNC errors and drop out

stegabilly
Tuning in

Hi, I've searched the forums and seen that a few posts have been answered and have been helped to be resolved here for an issue that I think I'm having. I'd appreciate if someone could have a look at my logs to see if there is an issue here. My connection seems to drop off quite regularly. Very frustrating trying to work from home. 

Broadband Quality Monitor | thinkbroadband

1 ACCEPTED SOLUTION

Accepted Solutions

Hey @stegabilly,

Welcome to the community and thanks for taking the time to post your issue on the forums.

I'm sorry for the issues that you're having at the moment and I have looked into this further and can see an issue with your upstream power levels, that will need a technician visit to resolve.

I can arrange the appointment from here but would need to confirm a few details via a private message, that I will drop over in a moment.
Please look out for the private message and we can get started.
Regards,
Steven_L

See where this Helpful Answer was posted

14 REPLIES 14

stegabilly
Tuning in

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

13867500007.540256 qam32
22027500007.138256 qam9
32107500007.138256 qam10
42187500007.338256 qam11
5226750000738256 qam12
62347500006.838256 qam13
72427500006.438256 qam14
8250750000638256 qam15
9258750000638256 qam16
102667500006.338256 qam17
112747500006.338256 qam18
122827500006.438256 qam19
132907500006.338256 qam20
142987500006.538256 qam21
153067500006.538256 qam22
163147500007.338256 qam23
173227500008.138256 qam24
18330750000838256 qam25
193387500007.938256 qam26
20346750000838256 qam27
213547500007.940256 qam28
22362750000838256 qam29
23370750000840256 qam30
24378750000838256 qam31



Downstream bonded channels

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

1Locked40.3573884377272
2Locked38.9101809456921109
3Locked38.9105781226519147
4Locked38.9113328345734272
5Locked38.6116446935431069
6Locked38.9122891784746145
7Locked38.9120799404989023
8Locked38.6109895536140105
9Locked38.9118567615250390
10Locked38.6138309273149456
11Locked38.6147490732101380
12Locked38.6154769171040352
13Locked38.915613467855569
14Locked38.915721532631105
15Locked38.915529470298743
16Locked38.91288151884745
17Locked38.9834418877896
18Locked38.9793791279718
19Locked38.9775896179061
20Locked38.9739295179120
21Locked40.3655376477183
22Locked38.9645264682122
23Locked40.3599185085421
24Locked38.6549818386758

Upstream bonded channels

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

15369999146.5512064 qam2



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0040

Network Log

Time Priority Description

27/02/2022 23:05:49Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****-QOS=1.1;CM-VER=3.0;
27/02/2022 23:05:49criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:05:41Warning!RCS Partial Service;CM-MAC=((((CMTS-MAC=((((;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:05:40criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=0****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:05:37Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:05:36criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:05:28Warning!RCS Partial Service;CM-MAC=a****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:05:22criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=0****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:05:14Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:05:14criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:05:12Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:05:12criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:05:11Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:05:9criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:02:17Warning!RCS Partial Service;CM-MAC=a****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:02:17criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:02:3Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:02:3criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:02:2ErrorDCC rejected authentication failure;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
27/02/2022 23:02:1Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;

I disconnected and retightened the coax at the router and wall presentation just to make sure, and that hasn't solved it. I've rebooted the hub multiple times. Its weird that the SSID seems to default every now and again to its VM***** name and I can see loads more VM***** SSIDs before it regains the name I gave it and the other SSIDs disappear. Devices are also kicked off the SSID. It doesnt look to lose power as the SSID doesnt disappear completely for that amount of time. And BQM is showing that the IP is being unreachable.

Any advice? Many thanks.

This is from the upstream this morning. Checking the BQM from over the night, there were more issues early in the morning:

Upstream bonded channels

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

13940000046512064 qam4
26030000046.8512064 qam1
34620009846.3512064 qam3
45370002546.5512064 qam2



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0020
3ATDMA0030
4ATDMA0010

And this is the latest Downstream, 8 hours after I posted the prevous log:

Downstream bonded channels

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

13387500007.838256 qam26
2202750000738256 qam9
3210750000738256 qam10
4218750000738256 qam11
52267500006.938256 qam12
62347500006.538256 qam13
72427500006.138256 qam14
82507500005.938256 qam15
92587500005.938256 qam16
102667500006.138256 qam17
11274750000638256 qam18
122827500006.338256 qam19
13290750000638256 qam20
142987500006.338256 qam21
153067500006.338256 qam22
163147500007.138256 qam23
17322750000838256 qam24
183307500007.938256 qam25
193467500007.838256 qam27
203547500007.638256 qam28
213627500007.938256 qam29
223707500007.840256 qam30
233787500007.838256 qam31
243867500007.440256 qam32



Downstream bonded channels

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

1Locked38.9361135179733
2Locked38.69933362581605
3Locked38.910461582533794
4Locked38.912303442354404
5Locked38.912912072294565
6Locked38.914440212138425
7Locked38.913027242281614
8Locked38.99606322623028
9Locked38.911021542493877
10Locked38.917033281882515
11Locked38.920560161535888
12Locked38.925372501040195
13Locked38.92618374959559
14Locked38.92746122832288
15Locked38.93038444522697
16Locked38.93278609121398
17Locked38.9274147677560
18Locked38.6271793077798
19Locked38.9265014876702
20Locked38.9251007078043
21Locked38.6246215680194
22Locked40.3234583582110
23Locked38.9221955883007
24Locked40.3207678882406

Network Log

Time Priority Description

28/02/2022 05:26:8Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 05:26:8criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 05:24:0Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 05:24:0criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 04:57:34Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 04:57:34criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 04:57:28Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 04:57:28criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 04:57:27criticalNo Ranging Response received - T3 time-out;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 04:57:26Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 04:33:49criticalNo Ranging Response received - T3 time-out;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 03:49:23Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 03:49:23criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 02:40:40Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 02:40:30Warning!Lost MDD Timeout;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 02:40:30Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 02:40:30criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 02:40:28Warning!RCS Partial Service;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 02:40:28criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;
28/02/2022 02:40:22Warning!Lost MDD Timeout;CM-MAC=****;CMTS-MAC=****;CM-QOS=1.1;CM-VER=3.0;

10 hours after the last update, more T* Timeouts

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0010
2ATDMA0030
3ATDMA0030
4ATDMA0020

Today's update:

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA00100
2ATDMA00310
3ATDMA00370
4ATDMA00310



I'm feeling like the incrementing T3 Timeouts probably warrant an engineer visit, but I don't understand what the range for power and RS errors is. But i see 38 SnR seems to be similar to most others. Any guidance, cheers?