Workflow threw an exception for the following reason: The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communication because it is in the Faulted state.

It looks like the AOS configuration settings generates the error, “The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communication because it is in the Faulted state.”  There has been some confusion on the AOS Server, this should be the actual server name not the AOS instance name.  Can you please verify the same?

I would also like you to verify the AOS services port.  To find the AOS services port, review the AX32Serv.exe.config file on the AOS server. By default, this file is located at (:\Program Files\Microsoft Dynamics AX\60\Server\MicrosoftDynamicsAX\bin\AX32Serve.exe.config)

The default port number is 8201.