I looked up some other threads about this and it has happened before, but generally when it happens, it happens to several people (It seems like everyone) and it is usually fixed within the hour. (A server issue)
I am having a different experience, I can't find any posts on this date regarding this sort of issue, and I have even asked people on my friend list, nobody else seems to be having this issue. My internet connect is fine (obviously, I'm posting this.
) and I can even still talk to people on my friends list (and others) through the SC2 IM system. So the issue is only the ladder matchmaking system. I was playing for about 4 hours then this just randomly happened and I haven't been able to play for about an hour and a half now, any ideas why or how to fix it? 
***Any help is appreciated
***