Root Cause: Only appears If the Service Manager doesn't use the default port 8871. Is no service manager port is defined in the key SMGR_PORT_RANGE in UC_SYSTEM_SETTINGS, the WP looks for the Service Manager under the default port 8871. That causes this error message. As soon as the SMGR_PORT_RANGE is defined correctly, the error message will no longer be displayed.
Define the SMGR_PORT_RANGE correctly and the error message will no longer be displayed.
Fix Status: No Fix