More than 100 results found for "authenticator serial code incorrect"
How to attach an Authenticator to your Battle.net account
What to do if the security code sent to your mail or SMS is not allowing you to authenticate your account
What to do if you can't resync your authenticator.
Information on the Battle.net Authenticator
Information on resolving Code 75 for Diablo IV.
What to do if you encounter this error when attempting to play Diablo IV on third party platforms such as consoles or Steam
What to do if the verification code received via SMS doesn't work
What to do if you obtained a game-time code for the incorrect WoW region