I have a trusted HTTPS Cert installed and I still cannot get the Captive Portal to pop on an Apple iDevice. It works fine with HTTP (disabling HTTPS as suggested above.
I can navigate to Clearpass GUI via a browser on a Windows machine with HTTPS and it is secure (green https) with no cert warnings.
I have tried two different HTTPS Certs in Clearpass.. Comodo and GoDaddy. Neither allow the portal to pop on Apple.
I assume it is an intermediate cert issue but how do we tell when it works fine elsewhere?
Any things else I can look at? Do I need to do other configurations in Clearpass after installing an HTTPS Cert ( I did make sure it was HTTPS and not Radius cert.)?