For the last couple of days I have been unable to join a quick match at all and using the server browser has been hit and miss. To get into a match, I have to search recent players and find a session in progress to join. Three friends I regularly play with have been having the same problem. This happens wether we try to join solo or as a party. I have open NAT and have reset my router several times. I have played Gears 3, Reach, and AC multiplayer during this time with no problems. I have Back to Karkand and have taken the multiplayer update. Is anyone else having problems? Any ideas on a fix? Thanks.