I can't imagine what the problem is. Nothing has changed except for 1 thing. Somebody (clearly not me) installed my copy of War3 plus my legally purchased Frozen throne, lost the cd, and then applied a crack online. In the crack, it was advertised (so I was told in an anonymous letter) that it somehow cracked Battle.net aswell in some way. So, I figure this has to have something to do with it.
I've restarted my computer, uninstalled the crack, messed around with firewall junk, nothing is fixing this. Please help me!
EDIT: As it turns out, I was infact IP banned, and the fix was quite simple. I'm not completely retarded, and I actually did have a reason to believe I wasn't IP banned, so I ignored Jimminy's advice, but it actually helped in the long run. So thanks, and I guess I look retarded.