Troubleshooting steps for communication and transmission errors.

Before you can connect to the game servers, you must add a phone number to this account.

What to do if you get a "Something went wrong" error when logging in to the Battle.net Mobile App

How to create an account to play on the Public Test Realms

Questions about the Blizzard Internship program

How to remove or change the phone number on your Battle.net account

How to resolve this error when trying to log in to Battle.net

Information on Battle.net Phone Notifications

Information about this error when adding a phone number or an Authenticator to a Battle.net account

Instructions for reducing the installation size of Call of Duty or removing unwanted Game Modes.