meru wireless authentication

[Fullmoon]

Topology

Internet---Firewall/Fortigate---L3 Switch/Vlans enabled-----Workstations per vlans.

FWLC and AP are connected in Native Vlan (vlan1)

anyone already implemented Fortinet Wireless/Meru with Radius Authentication?

I have my AD and NPS installed in 2008 R2 server. Need detailed procedure on how to configure those.

Saw this link but hard to follow. 

http://kb.fortinet.com/kb...amp;documentID=FD37939