Poor Performance on a Laptop
Troubleshooting steps for performance-related problems.
Information about what to do if you are experiencing reduced performance on the Beta version of the Battle.net Desktop App
How to resolve issues with slow patch downloads
Information on error BLZBNTBNA0000012C
Information on error message BLZBNTBGS8000001C.
How to resolve this error in Diablo II
Troubleshooting steps for communication and transmission errors.
A guide for diagnosing and repairing problems with physical hard drives.
The Battle.net desktop app is trying to connect to an invalid or nonexistent server.