I tried to join 5 games yesterday. 3 directly to servers on the list, it just sat there doing nothing. Hit quick match, waited, screen changed then went back to join game screen. Finally hit quick match for conquest and it put me in a team deathmatch game. Going back to COD for a bit.
I've had no trouble joining a match on PS4 for the last week or so. I've been using server browser though fwiw, so that I can set filters for what I'm looking for. Maybe try that. I think there's a title update for Xbone today too?
I said I was connecting directly to servers on the list