Issue 
A users credentials fail to authenticate in Application Configuration Utility > Application Services Host: 
  
 Citect connection unavailable.
 Note: Citect runtime must be running to perform this test 
Note: Citect Runtime is already running. 
Product Line 
PowerSCADA Expert 8.1, 8.2, 9.0 (PSE 8.x, 9.x) 
Environment 
Application Configuration Utility 
Cause 
A successful connection by the Schneider Electric ApplicationServiceHost service requires a user already defined in the PowerSCADA project, server IP address and a parameter in the INI file.  However, testing citect credentials will not work if it's running as a service. In this resolution, the INI parameter is missing. 
Resolution 
1.  In Citect INI file, set [ctAPI] Remote = 1. 
  
2.  Shutdown and restart the Runtime (project). 
3.  Now the test will succeed: 
  
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