Well, this sollution worked for me.....(Cheers to Pez)
<Quote>
Greetings All,
A couple of weeks ago I was able to conduct voice/web
chat with all my friends, then all of a sudden it stopped
working. My friends were able to chat to each other, so
this left me to think that the problem was either because
of my PC or an ISP issue. Nothing had changed on my PC
and another friend (on the same ISP) was having the same
problems. After weeks, of complaining to my ISP and
trying various configuration, I've seem to have found a
workaround that worked for me and my friend.
Here it is :-
Try disabling (uncheck) the "QoS Packet Scheduler" on
your network interface and reboot. If you require
the "QoS Packet Scheduler", you can try uninstalling it
and re-installing it. I did this and it worked fine.
I'm still puzzle why this happen. The only think I can
think of is that there was a recent Windows critical
updated (which I installed) that may have corrupted the
QoS Packet Scheduler and either disabling it or un-
installing/re-installing it seem to resolve the problem.
If you are expediting voice/webcam issues, try this and
see if it works for you! This solution may not work for
everyone!! Please let me know if this works for you.
PS - Thanks Jonathan Kay for pointing me in the right
direction. Maybe you or MS can investigate why this is
happening?? Maybe it's a new bug?
Pez </quote>