Can't get reliable connection on infinity - bt tech support clueless to help !

[Simopetar]

Hi all

since last Thursday our Infinity service has been painfully slow / broken when browsing. Google home page and search results appear, but loading pages beyond that usually stall at 10% and then drop. Can't get Xbox connection or  connection to a VPN either. My 2 neighbours also have the same issue starting from the same time.

Have spent close to 3 hrs on the phone with bt tech support with no resolution as the HH5 and line test fine (78up/19 down). Must admit the support service has been appallingly bad but anyway they've decided to send an engineer To check the house wiring.My gut feeling is this is unwarranted but are out of options.

What are the likely causes of this sudden meltdown in service ?

I know about contention ratios and congestion, but from 100% to zero speed overnight ? 

Is it possible that it's related to some weird DNS behaviour

[Simopetar]

...?

i've also tried to concept to the wholesale speed test but it times out.

any help much appreciated

S

[Webby]

Wired or wireless?

[Simopetar]

Both wired and wireless connections have the same problem

thanks S

[Webby]

What postcode area are you in?

[Simopetar]

London se23

[Webby]

Have you checked the plusent site for any known BT MSO's?

[Simopetar]

Yes- nothing reported for forest hill exchange, neighbour is with plus net and they have told him also no reported issues. Interesting as I have spoken to 3 other neighbours who are in process of resolving same issue !

[Webby]

There's possibly is an issue which is yet to be identified.