Trying to connect to a WMPS service source and getting error "An error occurred while getting MapPublisher Applications"
Diagnosis
If the WebMap Configuration Test is fine but the WMPS is not working with the error "An error occurred while getting MapPublisher Applications", then you may want to try creating a demo WMS to see if that works. Chances are you will see a browser error relating to "microsoft.identityModel", this is an indication of the Windows Identity Foundation is missing from the WebMap server.
Solution
Install Windows Identity Foundation on the WebMap server. (This is a prerequisite of WebMap)
