{sever_error: Microsoft.Live.LiveAuthException: An error occurred while performing the operation. Please try again later. ---> System.Exception: Die Anforderung wird nicht unterstützt. (Ausnahme von HRESULT: 0x80070032)
   at Windows.Security.Authentication.OnlineId.OnlineIdAuthenticator.AuthenticateUserAsync(IEnumerable`1 requests, CredentialPromptType credentialPromptType)
   at Microsoft.Live.TailoredAuthClient.<GetAccessToken>d__b.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at Microsoft.Live.TailoredAuthClient.<AuthenticateAsync>d__0.MoveNext()
   --- End of inner exception stack trace ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at WitzeWindows8.ExtendedSplashScreen.<DismissedEventHandler>d__13.MoveNext() in c:\Users\Michi\Documents\Visual Studio 2012\Projects\WitzeWindows8\WitzeWindows8\ExtendedSpashScreen.xaml.cs:line 135}