Information on error BLZBNTBNA00000066

Troubleshooting steps for performance-related problems.

There's a problem with the connection to the Blizzard servers.

Troubleshooting for installation-related problems on Mac.

What to do if you have trouble with the captcha

Information on error BLZBNTBNA00000065

Information on Unable to Locate Component error.

Troubleshooting problems with the Battle.net friends list

How to solve this problem on an incomplete Battle.net account

Troubleshooting step for connection-related problems on Windows.