Constantly intermittent wifi

[fordxman5]

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:

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

[fordxman5]

Downstream bonded channels

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

1	299000000	6.5	37	256 qam	21
2	203000000	7.6	36	256 qam	9
3	211000000	7.6	36	256 qam	10
4	219000000	7.3	37	256 qam	11
5	227000000	7.5	36	256 qam	12
6	235000000	7.3	36	256 qam	13
7	243000000	7.3	36	256 qam	14
8	251000000	7	36	256 qam	15
9	259000000	7.3	36	256 qam	16
10	267000000	7	36	256 qam	17
11	275000000	6.6	36	256 qam	18
12	283000000	6.8	36	256 qam	19
13	291000000	6.9	36	256 qam	20
14	307000000	6	37	256 qam	22
15	315000000	6.4	37	256 qam	23
16	323000000	6.6	37	256 qam	24
17	363000000	6.8	37	256 qam	25
18	371000000	7	37	256 qam	26
19	379000000	6.6	37	256 qam	27
20	387000000	7	37	256 qam	28
21	395000000	6.9	37	256 qam	29
22	403000000	6.8	37	256 qam	30
23	411000000	7	37	256 qam	31
24	419000000	6.5	37	256 qam	32

Downstream bonded channels

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

1	Locked	37.3	5	0
2	Locked	36.6	19	0
3	Locked	36.6	5	0
4	Locked	37.3	0	0
5	Locked	36.6	6	0
6	Locked	36.6	6	0
7	Locked	36.3	6	0
8	Locked	36.6	0	0
9	Locked	36.3	5	0
10	Locked	36.3	6	0
11	Locked	36.6	0	0
12	Locked	36.6	6	0
13	Locked	36.6	5	0
14	Locked	37.3	0	0
15	Locked	37.3	5	0
16	Locked	37.3	0	0
17	Locked	37.3	0	0
18	Locked	37.3	6	0
19	Locked	37.3	7	0
20	Locked	37.6	5	0
21	Locked	37.3	5	0
22	Locked	37.6	8	0
23	Locked	37.3	4	0
24	Locked	37.6	5	0

[fordxman5]

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;

[jbrennand]

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

[fordxman5]

Thank you, will do 

[jbrennand]

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.

[fordxman5]

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:

Network Log

Time Priority Description

30/06/2021 20:30:1	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:37	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2021 20:02:39	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2021 19:24:49	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:37	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2021 18:50:9	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2021 18:33:29	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2021 18:24:43	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2021 18:22:5	notice	SW download Successful - Via Config file
30/06/2021 18:19:8	notice	SW Download INIT - Via Config file
30/06/2021 18:19:5	Error	Disruption during SW download - Power Failure
30/06/2021 18:16:15	notice	SW Download INIT - Via Config file
01/01/1970 00:04:1	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:47	critical	16 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 00:01:47	critical	Ranging Request Retries exhausted;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;
01/01/1970 00:01:28	Warning!	MDD message timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:28	Warning!	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/05/2021 06:59:30	notice	Unit 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 06:40:7	notice	SW download Successful - Via Config file

[fordxman5]

help

[Sasha_W]

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 

[fordxman5]

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