Times when StarCraft II enters maintenance.

The maintenance schedule for the upcoming week.

Blizzard services are in maintenance.

Times when Heroes of the Storm enters maintenance.

What to do if you receive one of these errors on the Overwatch 2 website

What to do if you log into Diablo IV and your character's progress was lost or reset

Game cannot be launched because the operating system wouldn't allow the system to write to registry.

Blizzard servers could not be reached or may be offline. 

Troubleshooting the error message "The code you entered cannot be claimed."

Unable to access the game, getting error WOW51900104 when attempting to log in