Use the steps below to troubleshoot installation issues for Blizzard games.
What to do if you are unable to install or patch Diablo III
Information on what to do when a game update is stuck at 0 B/Ss
Installation or patch seems to be stuck at Fetching Encoding Table
Information on error BLZBNTBNA00000008
How to run a pathping on Windows and Mac.
Information on error BLZBNTAGT0000085C
Information on error BLZBNTAGT0000083F