Unable to install Battle.net Application after downloading from the website.
We can't connect you to the Blizzard patch service. Please check your internet connection and try again.
Troubleshooting steps for when your classic Diablo can't connect to Battle.net.
Information about the error message "You can’t make this purchase because your previous purchase is under review" and troubleshooting steps
Unable to connect to or stay connected to Battle.net
How to resolve the error message "We can’t process this code at this time"
What to do if you receive this error on the mobile Battle.net app
Troubleshooting steps for when Warcraft II can't connect to Battle.net.