I have a 2500 controller and three 1600 access points and am having a terrible time with the setup. I have the controller all set and can get to it through the web interface and I have two of the AP's connected to it and broadcasting. But how do I set up the actual wifi? I can see the original WLAN I created on setup on my phone but when I try to connect it asks for a username and password and nothing works. I have seen things for a RADIUS server, do I need to install that on something to get this to work? I have even tried adding a new WLAN on the controller but it does not appear even after restart. Thanks!