i have been having the same problem. it either searches forever or it tells me there was a problem communicating with the network. The few games i was able to get into since release, i have to play with the cable unplugged symbol flashing in the middle of the screen the whole match. Only to be disconnected from host at the end and losing all my progress. all my double xp is just going to waste. No stats are saving for me in multiplayer due to lost connection to host every game. I am running on a wired connection and have 25mbs download and 10 mbs upload.
What is going on?