Captive portal time out

Hi Ganesh,

The user will be logout from firewall authentication list based on the auth-timeout-type and auth-timout settings under config user setting.

If the type is ideal and timeout is 5 min, the user will be logout if there no traffic received from the client for 5 minute. Kindly refer the below document.

https://docs.fortinet.com/document/fortigate/7.0.5/cli-reference/519620/config-user-setting

Also you can enable the keepalive feature through a global setting, After the login attempt, keepalive with the logout button will be displayed in the browser. Kindly refer the below document.

https://community.fortinet.com/t5/FortiGate/Technical-Tip-Authentication-keepalive-page/ta-p/196620

Regards

Jamal Hussain

Hello @ganesh_karale 

Please check this article on  FortiGate external captive portal authentication and timeouts

https://community.fortinet.com/t5/FortiGate/Technical-Tip-FortiGate-external-captive-portal-authentication/ta-p/208486

Thnaks

Pavan