Possibly all the americans now having the game clogging up the matchmaking servers. Once it calms down should be ok, i hope lol.
Last night Elo was having a lot of problems with WFC, not sure if it was his internet, or WFC not working for him, but he got DCed a few times, couldn't connect to rooms, and when i was finally able to join his room, got DCed again. Finally, we were able to get a match played lol.
Had no issues playing against Big Chop though, he joined into my room quickly, and didn't seem to be any lag or sync issues.