small problem with the multiplayer

I can see all the servers on the list just fine but when I try to connect a server it always gives me the following message: "We are experiencing some problems" "Sorry about that".

What do I have to do to get it working ?

Edit: Problem solved. Found something on the bungie forums and it worked.

Check your firewall logs, make sure you run H2V(ista) on Vista.

I checked the firewall logs and it seems like that there's nothing wrong there.

Did you ever resolve this issue?