If you receive this error message, it means World of Warcraft lost its connection to the server.
Troubleshooting error "Unable to start up 3D acceleration" in World of Warcraft
Troubleshooting steps for disconnection issues in World of Warcraft.
You might be in a raid group! We also have some other steps to fix this issue.
Troubleshooting for problems installing or patching the World of Warcraft game client
This article explains the process of speaking to a Game Master (GM).
Troubleshooting steps to help you connect to World of Warcraft
Troubleshooting steps for error "Game Initialization Failed" when launching a game
This occurs because your game client does not match the version on our servers.
Instructions on lowering the maximum frame rate.