Vista question!!

[Raxnor]

So i got me a new PC a few days ago and iwas wondering if i can find some help here.
I install WOW then when i try to get online i get this msg
Unable to connect.Please try again later. If the problem persist , please contact technical support.
I try to see if there was a firewall or something but everything seen fine so i am not sure whyi can't connect to the game anyone has a clue that can problt share some info?