Same thing just happened to me. Playing ranked, less than 10 mins into the game it froze and I got the 'Trying To Reconnect' message for about 3 mins. At that point I backed out of the game, opened a browser to test my connection. Everything was fine so I knew it wasn't my network/internet. Logged back in, noticed there was no option to reconnect, checked match history and nothing was logged from that match.
Just tried starting a new ranked match, nothing happens when I click 'Find Match' after I've selected my roles. The entering queue sound goes off, but there's no queue timer and the screen doesn't change to note that I'm looking for a match now. Can't tell whether I actually am or not.
EDIT: Was able to reconnect and finish the game with no further issues just now.