1753119 - Error COM013: The attempt to connect to the server failed. when connecting to PAS from a client machine

• Test Model Connection fails
• Unable to connect to Strategy Management Application Server (PAS) from a client machine
• Error: 

COM013: The attempt to connect to the server failed. The call to function received the WINSOCK error code - WSAECONNREFUSED: Connection refused. This usually indicates that the Pilot Analysis Server TCP/IP Listener is not active on the server machine. Check to make sure the server is ready to accept connections from this Analysis Server client. Also make sure that the port number you are connecting to is the correct port. Consult the WINSOCK documentation or winsock.h file from your WINSOCK vendor for additional details.

SSM; PIP; , KBA , EPM-SM-APP , Applications , Problem