Captive portal of Fortinet to Cisco AP

Hi,

maybe specify your question in more details, because:

- captive portal is technology/idea .. it is somehow implemented in FortiAuthenticator, FortiGate and other products - 201E is what ? I guessed that you might refer to Access Point but I haven't found one, it might be FortiGate

- Fortinet is not a Cisco, however generic ideas and technology parts like RADIUS used to auth users is very similar

So, HOW?

https://cookbook.fortinet.com/

https://docs.fortinet.com/

... google 3rd party guides.