Try the steps in the articles below
http://support.microsoft.com/?id=240429
http://support.microsoft.com/?id=819836
also try disabling the Antivirus and firewalls software this may help!
Prajin
"Agim" wrote:
> hi i play a game called age of empires 2 expansion and
> recently i have an error coming up saying "unable to join
> game". Thus has been happening for nthe last week and it
> is still not fixed i have tried everything but it aint
> working please help me fix my promblem if u know how to
> send it to raver_13 RemoveThis @hotmail.com
>