Suddenly while playing a live match today at the top right of the screen was the red-letter disconnection issue where it counts down from 25 seconds and the game (although not Dota 2) crashes when it hits 0. Then back in the lobby, there wasn't even a button to rejoin the game, just a "find match" button. Disappointing as otherwise steam and dota and my internet all seemed fine and I should have been able to rejoin.