Decryption key is invalid or missing. Please uninstall and reinstall.

Error emerges when trying to restore the previous auth on a new device

​The authentication service is currently experiencing a high volume of traffic. Please try again later.

How to unlink your Twitch account from your Battle.net account

Information on error BLZBNTBGS80000020

Unable to log in to a character after a paid service

Unable to enter overcrowded WoW Classic realms

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

What to do if you don't have the promotional Samsung cardback in Hearthstone

What to do if you can't log in to your character after using a Character Boost or receiving a Gear Upgrade