same happens to me, nothing wrong with the internet. I stopped yesterday after I lost 100 sr due 2 disconnections at the beginning of the match, the funny thing it just disc then connect immediately! I HATE THIS!
Same, i just change my internet to fiber, and i got disconnected more than 3 time last night. Luckily i was only playing quick play. i asked the people who quequed up, they had the same experience..
If the players on your screen slow to a stop or only move one direction before you disconnect it's your internet connection. If not then I guess that sucks. Make a post everyday on the battlenet forums til they solve your issue or do something about it