Anyone out there that uses Rogers Rocket Stick?

I just got the Rogers Rocket stick. And the internet works fine but my msn doesn't work. When I go to "repair" on msn it cannot repair it(something is wrong with the IP address). But if I disconnect from the rocket stick and go to a wireless network that I'm basically 'stealing' from someone and connect to it. My msn works fine. Any ideas on what I can do?