Before ADMS can do anything, KAMAR needs to be setup to send data to it using Directory Services
Main Menu ⇒ Setup ⇒ KAMAR ⇒ Server ⇒ Directory Services Create a 'New' service and select the 'Create' option
The default looks like this
The address field needs to have the URL or IP Address of the machine hosting the ADMS service.
For the Username use ADMS
For Authentication use the service GUID
Ensure that use SSL is checked.
Make sure Passwords is ticked.