How to submit feedback or report an issue with the matchmaking system

Troubleshooting for issues loading the BattleTag or Real ID friend list

Information about promoting guild members to officer ranks with the authenticator requirement enabled

What to do if you cannot party up with a friend with your seasonal hero

What to do if you don't see all your stash tabs in Diablo III.

Instructions for troubleshooting your network to allow Blizzard services to work properly.

Blizzard's stance on inappropriate behavior in Blizzard games.

Troubleshooting steps for performance problems

Information about why you may not be able to post in the forums, and steps for how to fix it.

Troubleshooting steps for crash problems