Not sure I'm understanding the question, but I'll give it a shot:
Radius servers are elsewhere typically, they have user names and passwords on another server, that you use to authenticate with the hotspot.
Bottom line, if you don't have a RADIUS Server that you know of, this is not going to work. I'd suggest a Pre-Shared Key (also known as PSK) instead. That way you only need to remember one password. If you insist on RADIUS authentication you'll first have to locate/setup the RADIUS server, then setup your Wireless to work with the server.