Your network contains an Active Directory Domain Services (AD DS) domain.

In the NPS/RADIUS section of Administering Windows Server Hybrid Core Infrastructure , a RADIUS client is defined as a network access server (NAS) such as a VPN server, wireless AP, or switch . The guid e states: “ Each VPN server that forwards connection requests to NPS must be configured as a RADIUS client .” User counts are irrelevant to the number of RADIUS clients; the determining factor is the number of NAS devices that send RADIUS messages to NPS. Th e table shows Boston: 2 VPN servers , Dallas: 2 , Seattle: 4 —for a total of 8 VPN servers . Therefore, to enforce policies for all remote connections through NPS1, you must add each of the eight VPN servers as a RADIUS client . Options reflecting user totals ( 180/188) are incorrect because users are authenticated via the NAS, not directly configured as clients in NPS.