Hello team, I have been getting this error when attempting to log into the Battle.net Desktop App on multiple different machines running Windows 11. The problem is network and machine independent otherwise. Customer support have referred me here, because none of the troubleshooting steps listed in the support article have worked or are applicable in the first place.
The Battle.net agent log suggests an issue with the OAuth token exchange during login, which appears to be failing with an internal error. Please see an excerpt from the log below. An identical chain of events appears for all failed login attempts that trigger the error.
D 2025-02-25 14:23:00.765404 [UnifiedAuth] {} UAuth: browser state changed: Login
D 2025-02-25 14:23:00.786685 [UnifiedAuth] {Main} UAuth: begin loading: https://account.battle.net/login/en/login.app?app=app
D 2025-02-25 14:23:00.786728 [UnifiedAuth] {Main} UAuth: set size from headers: 376x226 popup=0
D 2025-02-25 14:23:03.423793 [UnifiedAuth] {Main} UAuth: finished loading. statusCode=200 state=Login
I 2025-02-25 14:23:03.516382 [GameSessionList] {Agent} Reporting process: TrackingInfo(uid=battle.net, type=game, opStatus=On, reqId=0, running=5, oldRunning=4)
I 2025-02-25 14:23:03.517490 [InstallManager] {Main} Setting Process Running: true uid=battle.net binaryType=game any=true
D 2025-02-25 14:23:04.385829 [UnifiedAuth] {Main} UAuth: status changed: RequestingToken
D 2025-02-25 14:23:04.385854 [UnifiedAuth] {Main} UAuth: login submitted
D 2025-02-25 14:23:04.891307 [UnifiedAuth] {Main} UAuth: browser state changed: None
D 2025-02-25 14:23:05.397272 [UnifiedAuth] {} UAuth: browser state changed: Authenticator
D 2025-02-25 14:23:05.403176 [UnifiedAuth] {Main} UAuth: begin loading: https://account.battle.net/login/en/authenticator?hasSms=true&mobile=true&app=app
D 2025-02-25 14:23:05.403204 [UnifiedAuth] {Main} UAuth: set size from headers: 376x650 popup=1
D 2025-02-25 14:23:07.951164 [UnifiedAuth] {Main} UAuth: finished loading. statusCode=200 state=Authenticator
I 2025-02-25 14:23:10.939906 [Agent] {Agent} Agent Version is now: 2.37.3.9014 (retail)
D 2025-02-25 14:23:13.605614 [UnifiedAuth] {Main} UAuth: browser state changed: None
D 2025-02-25 14:23:14.012013 [UnifiedAuth] {Main} UAuth: status changed: ReceivedToken
D 2025-02-25 14:23:14.046435 [UnifiedAuth] {Main} UAuth: web login complete, beginning connection.
I 2025-02-25 14:23:14.047915 [Main] {Main} Connecting to server. address=us.actual.battle.net port=1119
D 2025-02-25 14:23:14.051233 [ClientServiceAlertMonitor] {Main} Service alert monitor force update requested
D 2025-02-25 14:23:14.051249 [ClientServiceAlertMonitor] {Main} Breaking News update requested
D 2025-02-25 14:23:14.053757 [ClientServiceAlertMonitor] {Main} Maintenance update requested
D 2025-02-25 14:23:14.104317 [UnifiedAuth] {Main} UAuth: browser state changed: Done
E 2025-02-25 14:23:14.660319 [BNLogin] {Main} Internal network error: 0 isNetworkError=false
D 2025-02-25 14:23:14.663954 [UrlManager] {Main} Resolved URL: key=/client/error/BLZBNTBGS80000011; region=US; endpoint=https://us.battle.net/support/en/article/BLZBNTBGS80000011?utm_source=app-battlenetdesktop&utm_medium=internal
I 2025-02-25 14:23:14.666148 [Registry] {Main} Failed to delete token from registry|error=ERROR_REGISTRY_OPEN_KEY_ERROR (1921)
I 2025-02-25 14:23:14.666167 [LoginController] {Main} Handling error from service. error=ERROR_INTERNAL (1) offline=false interval=00:00:00.000000
D 2025-02-25 14:23:14.691371 [UrlManager] {Main} Resolved URL: key=/client/legal/eula; region=US; endpoint=https://us.blizzard.com/en-us/company/legal/eula.html?utm_source=app-battlenetdesktop&utm_medium=internal
E 2025-02-25 14:23:14.709631 [BNLogin] {Main} Login failed. error=ERROR_INTERNAL (1)