Hi,
As per recent contact with support, I was asked to post here if I still have an issue. Not sure why, as it is just spam with almost every new post here and on reddit stating the same. But anyway, here it goes:
Since the last big patch I keep getting disconnected playing Hearthstone battlegrounds. Looking online, this is a widespread issue, only no message or solution from your side. It was mentioned in the small patch notes, stating it was fixed.
Well, that was a lie 
In addition to the above, my CPU often gets maxed out to 95-100%, after restarting it is back to normal. No other program does this, and the fix by adding a line to the start-up does not fix the spaghetti code.