Anybody else having problems signing into My o2 or using the rest of their site?

Definitely using the right password, it returns

Either the User name and or password is not recognised. Please try again.

When I try to go to the forgot password page: https://account.o2.co.uk/forgottenPassword.htm

I get this:

It used to do that to me all the time when at work, but would work at home or on my mobile.

You're not at work behind a firewall or anything are you?

Same here...

http://www.downornot.com/account.o2.co.uk

Phew, not just me then

Yes am behind corporate firewall, but has worked countless times before without changing anything.

Even on the backup connection with no firewall resulted in the same.