This very issue made this game much more unplayable than the first Beta or even the CTA. NWI please fix this immediately so we all can play the game flawlessly.
The first couple of games I played (co-op mode) successfully found me a match, but the rest after it keeps putting me in the spectators. I'm using an external HDD for this game also, even during the first couple successful co-op matches.
This happens to me multiple times when I'm trying to join a co-op match. During my first ever Beta 2 co-op matchmaking it still found me a match where I can play but after a couple of games it kept putting me in the spectators.