I did change the path and uncomment that line and it started to work after restarting radius server. It really did. I am on Zentyal 3.0. Windows8 clients worked out of box, just like android clients. Dunno about Windows Phone and other phones tho...
I hope I can make this as my corporate wifi with WPA Enterprise, otherwise I'll have to think different, chillispot or so... But the good thing is that it really works.