Yeah, I've tried from my computer in North Carolina and a friends computer in Texas via remote desktop, neither can get in. So it's either only allowing connections from a specific area, or you're lucky and it went back down after you got in.
I was logged in when it happened before, it only affected the login server from what I can tell (Some one told me they had a problem logging in, but I continued playing for a few hours until my internet DCd at which point I couldn't get back on).