I've never had problems matching before - usually takes a few seconds. I'm a 50-51 and my normal settings are 10 up/10 down, 2P, rated games only.
All of a sudden, two days ago, the computer stopped matching me. I'll hit "start search" and see the automatch queue shifting, but it will not match me. I've tried playing a few bot games and they work fine. I've tried opening up my settings to allow for any rating and any number of players, but it doesn't match. Did something change or is it a bug? Am I in time out?