Open ports on a public wi-fi router?

[JGeorge07]

Is it possible to open network ports on a public wi-fi router? I'm at a hotel with free wi-fi trying to connect my Xbox 360 via the Microsoft wireless router. It worked great for a few days, then it just quit. When I test the connection it says I need to open up some port (connects to the internet, just not Live). Is it possible to do this through OS X somehow? It's an unsecured network. I was going to try this, should that do it? (I'm at work now)

Any help would be appreciated!

 

[ppc750fx]

Unless you own the access point/firewall in question, no.

Well... it may be, but if you don't own it I wouldn't recommend trespassing just to play Xbox Live. Play some single player games instead.