January 2017
I was attempting to play multiplayer on Mass Effect 3 and it keeps giving me the error "An Xbox Live privilege limitation prevents you from accessing this feature" I have played the Multiplayer before and didn't have any issues. I have not changed any of my privacy settings that I know of, and I used my online pass because it says that code has already been entered.
January 2017
This sounds like an Xbox related problem, not a problem with the game.
I suggest you contact XBox support.