@KSab It is not the controller that makes requests to the radius server, it is the access points that do this. So you have to make sure that the access points have access to the radius server and...

@MrHC1983 strange, I had the same thing with unifi controller a few years ago, when I took backup disconnected all the devices on the controller, the controller worked so hard with the backup that it...

@CarbonPepper go to your site and then Go to settings and group. or settings, profiles and group on older controller

@KSab

@KSab goto global view, then system settings go down to Auto Refresh Portal IP then disable, goto Portal Hostname/IP

@stephrom If you have purchased the OC200 to use it as a print server, you have purchased the wrong product. The OC200 is a network controller for routers, switches and access points.