Alright, i have an open NAT type (type 2). This problem only begun occuring after the sackboy patch. The problem is, that whenever i play one online match, it works fine, but after i try my SECOND online match, it will give me a "Failed to connect to matchmaking server" error. this problem ALWAYS occurs on my second attempt to play online. Anybody with suggestions on how to fix or have encountered the same problem? Thanks.