The enemy team was about halfway through capping the second point on Blizzard World when my internet started acting up. I minimized the game and reconnected to the internet and got a message saying I had been kicked for inactivity. I received the 50sr loss and a 15 minute ban. This is the second time now where I have been banned and not allowed to rejoin a match when the game is well past the point at which the match gets cancelled due to a leaver or disconnect. What gives?
The amount of time you can rejoin is also limited, and I believe it changes based on how far along the match is. More info: