.NET Create new app connection, the operation was canceled.

[jp_golay]

Hi when I create a new connection in an app from .NET API I get this error

System.OperationCanceledException was caught

  HResult=-2146233029

  Message=The operation was canceled.

  Source=mscorlib

  StackTrace:

       at System.Threading.CancellationToken.ThrowOperationCanceledException()

       at System.Threading.CancellationToken.ThrowIfCancellationRequested()

       at Qlik.Engine.Communication.QlikConnection.SendAsync(Request request, Func`2 continueWith)

       at Qlik.Engine.App.CreateConnectionAsync(AsyncHandle asyncHandle, Func`2 onResult, Connection connection)

       at Qlik.Engine.App.CreateConnectionAsync(AsyncHandle asyncHandle, Connection connection)

       at Qlik.Engine.App.CreateConnectionAsync(Connection connection)

       at Qlik.Engine.App.CreateConnection(Connection connection)

       at QlikSense.QsHub.NETScanApp(String pAppId)

  InnerException: