So Ive been experiencing multiple disconnects in every game mode for a month plus now while all other Blizzard games work fine. I came to the forum to see if anyone else was experiencing the same thing. It started off slow but then more and more people kept reporting the same issue.
I followed a few threads to see if Blizzard would acknowledge/fix the problem and a couple days ago they finally did and were looking into it. When I checked back for the fix they said there was a major ISP outage and it had been fixed. I dont doubt that there was probably an outage somewhere but that has absolutely nothing to do with constant connection disruptions for over a month.
Instead of keeping the thread open (because the issue is still prevalent even though it was ‘fixed’) they said solve moved along and locked multiple threads. Here is the original thread Disconnect constantly - #11 by sosobandit-1879.