Originally Posted by
Buu
Welcome to EA customer support. They are a bunch of tribes with no connection to each other, and little to no knowledge of their products.
Well... It's the third or fourth time this incompatibility happen between Origin and some of their games. Honestly, this is the lamest and yet the most reliable solution: Download a cracked version of ME3 launcher. They will roll back the changes to Origin in a few days, as they ALWAYS did before, but until then the very own channel to EA servers will stay treating your game executable as hostile and not allowing it to keep running. Better to use a pirate version, that override this requirement.