Same here and same reply from BT support. It’s not their issue.
Look I am sorry but MSN worked no problems with my old 0.7MB O2 ADSl connection so why doesn’t it work on a faster connection. To be honest with you I think the HH is t blame by blocking ports or somewhere along the line BT are putting something in place but there denying this 😕 (Like their shaping (FUP) software is picking it up wrong or something)
Quite annoying so yep you’re not the only one 😉
And yep tried everything that supposedly fixes it and its still the same.
Gets annoying when your part of something where you need to use the live messenger client but cant.