42 days in a row the internet drops for about a minute every morning between 1.30am and 4am

[gipjon]

Started 23 days ago, internet drops for about 1 minute or so just once every single morning between 1.30am and 4am , 16 days in a row now .

I suspect its the D.L.M but not sure why , 

no packet lost

no none correctable errors in the router 

no excessive error's showing in the router

internet seem to be working  ok 

openreach master socket 5c with no phone or any internal wiring 

Vodafone saying D.L.M has not generated any errors reports with the drops 

in ref to speed the D.L.M will slow my connection down to 61.5 from  62.3 and then the day after the D.L.M will change it back to 62.3 .

i cant see this being any line fault as the D.L.M would have slowed me down by half after 16 drops 

ANY IDEA WELCOME 

[Jayach]

If the SNR drops much further the router will reboot and come back with a higher SNR, but slightly lower speed.

Just keep checking the SNR and if it continue to fluctuate it may be a line fault.

I wonder if the OR engineers swapped a couple of lines around?

[gipjon]

Update. After the two openreach engineers was at the fibre cabinet the internet has not dropped .also the engineer did also say he was going to mention it to his manager because he thought my issues was the DLM as well .so i don't know if they reset or rebooted the DLM if there is such a thing. Or moved some wire around away from my wires .

In ref to offcom (CISAS). vodafone has wrote back to cisas and myself and has come up with a lot better solution . Which is well in favour to me

So the facts are 

If you are not happy with vodafone put a complaint into the director office and if you are still not happy,  ask for a dead lock letter and take it to cisas(offcom)

It is well worth using cisas and vodafone deadlock term 

[gipjon]

One thing I forgot to say is when the two engineers were at the cabinet, one of the engineers was the same engineer that fitted my broadband and he remembers me, so I think that's why he said he would raise it with his manager. 

update 1: 

  1 drop after the two engineers visit to the cabinet and none since over 50 days and still connected, so looks like it was something in the cabinet.

update 2: I found out from another Openreach engineer that the cabinet had a couple of tickets raised on it for a number of ports that were not working correctly :

update 3: from cisas:

Dear Mr xxxxxx
I’m very sorry that your recent experience with Vodafone led you to contact CISAS.
Just to let you know, CISAS have told us you’ve accepted our settlement offer and that we need to:
• Provide a credit of £xxxx as a goodwill gesture for any inconvenience caused.
• Issue a letter of apology for the time and inconvenience caused.

Finally, while I’m very happy that CISAS were able to resolve things for you, I also fully understand that
you didn’t receive Vodafone’s usual level of service on this occasion. Please accept our sincere apologies
– and be assured we’ll do our very best to make sure this doesn’t happen again.
Thank you and I’m happy CISAS were able to help you.
Yours sincerely
ADR Team