Setting up a WPA2 Enterprise network requires setting up a RADIUS server to manage and validate network users’ credentials, such as user names, passwords, and user certificates. To set up the RADIUS server, see the documentation that came with it. After the server is set up, follow these steps to set up a WPA2 Enterprise network.
Open AirPort Utility, located in the Utilities folder in the Applications folder on a computer using Mac OS X, and in Start > All Programs > AirPort on a Windows computer.
Select the device you’re setting up, and then click Manual Setup. Enter the password if necessary.
Click AirPort in the toolbar, and then click Wireless.
Depending on the base station you're setting up, and the compatibilities of the wireless client computers that will join your network, choose WPA/WPA2 Enterprise or WPA2 Enterprise from the Wireless Security pop-up menu.
Click Configure RADIUS and enter the IP address, shared secret (or password), and port of the primary and secondary RADIUS authentication servers.