It kept happening in these 2 weeks:
I can login in Hearthstone but when I was playing a game. Suddenly it went:
“you were disconnected to the game, resuming”—> then I failed to log in for a while after I pressed “Wxit game” and lost my game or it took a quite while to resume the game.
It is extremely frustrating, especially when you lost a winning ranked game because of this.