After authentication a fortigate page appears

ac1 · ‎02-04-2022

Hello everyone,
When a guest user authenticates via the captive portal, a FortiGate page appears on the browser with the address ---> http://192.168.x.x:1000/fgtauth
By pressing the "Send anyway" button you can navigate correctly.

How is it possible to remove this page?

Browser: Chrome
Captive Portal: FortiAuthenticator v6.1.2, build0420 (GA)

Thanks
Andrea

ac1 · ‎02-25-2022

There were 3 different problems. I had to:

set the Authentication Settings with wildcard public certificate and redirects
create an A record on the DNS Server with the IP of the FortiGate guest interface
create on FortiAuthenticator an AP with fqdn of the fortigate, not the ip or others
correct the radius authentication, removing the membership group from the FortiGate.

Now everything is working correctly.
guest user registration -> sending mail to the sponsor -> guest user authorization by the sponsor -> credentials arrive to the guest user -> guest user login -> navigation without error pages.

I have become an expert on this subject. if you need write me and I will be happy to help.

View solution in original post

ac1 · ‎03-26-2022

Because the authentication fails, but it depend on the configuration of your radius server and its policies. In my situation I have a FortiAuthenticator with a specific policy that do not require anything in the membership group.

ac1 · ‎03-26-2022

Hello Fabio,

I don't have experience with Apple devices but I suggest you to read the article below that explai how devices work with captive portal:

How-Automatic-Detection-of-Captive-Portal-works