I tried the Army of Two 40th Day demo and registered with it but had no luck. I didn't actually try playing the demo so that may make a difference but I've been too lazy to give it a shot. Still not giving my PSN info out though.
The problem is with EA accounts. All you need to do is lunch Army of Two game and go online, then they will ask you to create an EA acount. Creat it and that is it. Quit the game insert Mercenaries 2 game and watch it connects to EA servers. Yes this works on all consoles fat and slim (tested)
Because EA closed the Mercenaries 2 servers the old accounts were wiped out. And so happensthat AOT use the same servers as M2. So creating account for AOT will create one for M2
If you already have an EA account for need for speed or any other games, you still need to create one in AOT for M2.
P.S I did conntact EA support but i git some BS answer that it s mu ps3 that is the problem
I just fixed this problem last night. I bought Army of Two used at Gamestop and most likely I am going to return it since I have 7 days to return a used game. I started up the game, accepted the EA contract, waited a little bit since I wanted to make sure I connected to the EA servers. Even went to host a match to completely make sure. Turned it off and started up mercenaries 2, the game finally connected to the EA servers.