Well it's not 'was' it's 'is'! The problem is still unsolved.
The opinion i was giving was that his problem might not be Mcafee after all but might be same problem I have. Since he never said anything else I don't know. Also, the problem i mentioned that I had with XP and a router was not firewall related it had to do with some default values on the router like number of open connections and stuff like that. My current has the same behaviour but on Windows Vista and without a router. So my guess is Vista's configs are diff from Windows XP when it comes to p2p and they are causing this and I'm pretty new to Vista and I don't know where these configs are or how to change them. Any help would be appreciated. Thank you.