An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is:
System.Net.Sockets.SocketException:
The remote certificate is invalid according to the validation procedure.
at System.Net.Sockets.Socket.BeginReceive(Byte buffer, Int32 offset, Int32 size, SocketFlags socketFlags, AsyncCallback callback, Object state)
at System.Net.Sockets.NetworkStream.BeginRead(Byte buffer, Int32 offset, Int32 size, AsyncCallback callback, Object state)