Troubleshooting steps when you can log into your account management page but not the Blizzard Battle.net App
During periods of high login traffic, we may put you in a login queue.
Your login session has expired. Please log in again.
Troubleshooting errors when trying to sign in to our forums
How to consolidate multiple Blizzard accounts into a single account.
How to resolve being unable to log in due to this error
Troubleshooting for error "Too many attempts" when trying to log in to the Blizzard website
Customer Support can assist in recovering Blizzard Accounts if provided with necessary information.
Information on error BLZBNTBNA00000A8D.
Troubleshooting for error BLZBNTBGS80000011.