"The session failed to load. Please try again.

ok i just tested everything out,  by myself.   i disconnected my router, linksys e1200 and i connected the game directly to the internet and wala, it worked without the router.  so even though it said that i had an open nat, there is still some kind of firewall stopping the game from going through online.  all of my other games worked fine with the router there is something specific to ufc that isn't working with it. 

somone please tell me if this solution fixes your problem as well.  and if so, what are we going to do about our router situation.

i have opened ports, i even did dmz nothing worked.