Explains the level of technical support we offer on Blizzard and Activision products.
Information on error BLZ51900002
Information on error BLZBNTAGT00000840
Out-of-date drivers and operating systems can cause a variety of issues, and are one of the first things to check when a game is having problems.
Troubleshooting steps for connection problems
How to read and analyze WinMTR data in order to track down a potential connection issue.
Troubleshooting game or Blizzard services connection error BLZBNTAGT00000BB8
Troubleshooting your security programs can resolve issues preventing you from installing or using Blizzard software.
A guide on running a traceroute on Windows and Mac.
The Blizzard Battle.net desktop app is unable to find your game installation in the directory selected.