I know this post is very old, but I can assure everyone that freeradius does NOT and will NOT work no matter how it's configured, I have tried for 3 months, and even a profession IT techie couldn't do it, as the setup instructions are not simplified.

EG what follows 'client' is it a name? IP address? Who knows, I've tried both, and it still throws an error, 'unable to resolve name to ip address'

What follows 'ipaddr'? is it the router/AP ip address or the server ip address? Who knows? I've tried both and the error log says something about an unknown client.

What other additions are there to place? Who knows? As the documentation is not simplified for stupid people like me.

There is NO example configuration files with comments on each line.

EG ipaddr is where you put the ip address of ...........

or a plain explanation of what to put after 'client', instead of just showing 'client network_device {' what network_device? printer, router, server, NAS? There's not enough simple explanations, and then people wonder why it doesn't work.