Road to Masters Online Match Crash

Every time I try to play the Online 2 - 16 Players match and there is more then like 4 or 5 people in the session, my game just quits back to the main menu once the session starts. There is no error message or anything that comes up, I have no issues with the 2v2 or 1v1 game mode its just when there is multiple people in the session. It used to be fine and now its almost every single time. It is not my internet as I have 500+ speed. How can I fix this? I tried turning all the graphics down with no luck.