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fordxman5
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Constantly intermittent wifi

Hi, I have had an engineer come by and change some wires but I still have the problem of intermittent wifi; the wifi slows down, the router reboots and at first displays red wifi lights, then 3 green lights. It then starts after a couple of minutes.

 

This is on all devices, over wifi, and happens approximately 10-15 times a day at this point. 

A principle engineer will be visiting, but this required a lot of talking as everyone on the call centres claims there is no fault. 

 

Here are my logs:

My Broadband Ping - home wifi

https://www.thinkbroadband.com/broadband/monitoring/quality/share/1b530d3fcbd447b1ff6d4df9abee08a3b1cd83a7

 

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fordxman5
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Re: Constantly intermittent wifi

Downstream bonded channels

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

12990000006.537256 qam21
22030000007.636256 qam9
32110000007.636256 qam10
42190000007.337256 qam11
52270000007.536256 qam12
62350000007.336256 qam13
72430000007.336256 qam14
8251000000736256 qam15
92590000007.336256 qam16
10267000000736256 qam17
112750000006.636256 qam18
122830000006.836256 qam19
132910000006.936256 qam20
14307000000637256 qam22
153150000006.437256 qam23
163230000006.637256 qam24
173630000006.837256 qam25
18371000000737256 qam26
193790000006.637256 qam27
20387000000737256 qam28
213950000006.937256 qam29
224030000006.837256 qam30
23411000000737256 qam31
244190000006.537256 qam32



Downstream bonded channels

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

1Locked37.350
2Locked36.6190
3Locked36.650
4Locked37.300
5Locked36.660
6Locked36.660
7Locked36.360
8Locked36.600
9Locked36.350
10Locked36.360
11Locked36.600
12Locked36.660
13Locked36.650
14Locked37.300
15Locked37.350
16Locked37.300
17Locked37.300
18Locked37.360
19Locked37.370
20Locked37.650
21Locked37.350
22Locked37.680
23Locked37.340
24Locked37.650
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Re: Constantly intermittent wifi

Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 46200000 45.3 5120 64 qam 3
2 60300000 45.3 5120 64 qam 1
3 53700000 45.3 5120 64 qam 2
4 39400000 46.5 5120 64 qam 4


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
27/06/2021 13:51:31 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/06/2021 02:46:6 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 16:01:23 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:41 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 13:58:5 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:40 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 10:53:53 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 10:29:35 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 10:28:58 Warning! Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 10:28:53 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 10:28:53 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 10:28:52 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 10:28:26 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 10:28:26 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 10:25:49 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 10:25:49 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 10:25:47 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 10:25:47 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 10:25:46 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2021 10:25:41 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
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jbrennand
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Message 4 of 38
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Re: Constantly intermittent wifi

They are saying "no fault" because the Hub stats look fine - however the network logs and BQM tell a different story. When the senior tech arrives make sure you show them the poor BQM and the T3 timeouts in the logs - they shouldnt be there - ask what they propose to do to rectify the issue

--------------------
John
--------------------

I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.
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fordxman5
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Re: Constantly intermittent wifi

Thank you, will do 

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Re: Constantly intermittent wifi

Worth doing a quick check that all of your coax cable connections are in nice and "finger" tight - at the Hub and wall box and also at any connectors etc. Ensure there are no “unterminated cable loose ends anywhere. Disconnect all the connections and reconnect to be sure. Also check that the internal wiring is ok with no kinking or chaffing to the insulation, check that all looks good with the outside cabling and wall box - no damage no nails through the cables etc, etc.

--------------------
John
--------------------

I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.
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fordxman5
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Re: Constantly intermittent wifi

UPDATE:
Router was changed but problem is still there, I don't know what is happening
Senior Engineer was a solid guy changed the router and made sure all the power was alright but still problem is there.

Lost for words at this point
here is the new BQM and logs: My Broadband Ping - wifi after router change

 

Network Log

Time Priority Description

30/06/2021 20:30:1noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:37criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2021 20:02:39ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2021 19:24:49noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:37criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2021 18:50:9ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2021 18:33:29noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2021 18:24:43Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2021 18:22:5noticeSW download Successful - Via Config file
30/06/2021 18:19:8noticeSW Download INIT - Via Config file
30/06/2021 18:19:5ErrorDisruption during SW download - Power Failure
30/06/2021 18:16:15noticeSW Download INIT - Via Config file
01/01/1970 00:04:1criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:47critical16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:47criticalRanging Request Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:41criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:28Warning!MDD message timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:28Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/05/2021 06:59:30noticeUnit has been restored to factory defaults from a software issued command;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/05/2021 06:40:7noticeSW download Successful - Via Config file
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fordxman5
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Re: Constantly intermittent wifi

help
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Sasha_W
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Re: Constantly intermittent wifi

Hi @fordxman5

 

Thanks for keeping us updated on this, did the engineer recognise the issue and check the cables at all or the cabinets? 
 

Did he suggest what to do if the issue occurs again? 

 

Have you also carried out a reboot since the engineer has left just so we can check the issues on our end? 

 

If so, we are more than happy to take a further look into this, but please do let me know. 

 

Thanks 

Sasha - Forum Team


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fordxman5
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Re: Constantly intermittent wifi

I will write in order what has happened

1st engineer replaced wires, problem persisted

2nd senior engineer changed router, checked every single wire problem persisted, at my house and down the street 


He suggested to remove the cctv ethernet wire as this could be causing the problem , I removed it, problem still remains.

That's all I believe

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