Account has been hacked or compromised.

How to consolidate multiple Blizzard accounts into a single account.

If you have lost access to your account, our automated recovery process can help.

Troubleshooting steps for payment error: Oops! This needs your attention.

Boku payment error information

Information about using Paysafecard in the Blizzard Shop

Explains the level of technical support we offer for all our games.

How to read and analyze WinMTR data in order to track down a potential connection issue.

A guide on running a traceroute on Windows and Mac.

Troubleshooting steps to resolve performance problems in Diablo III.

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.

Instructions on how to use Looking Glass.