I configured XG as follows
Authentication > Services > Web Policy Actions for Unauthenticated Users (Captive Portal)
User inactivity timeout: 3 Minutes
Data transfer threshold: 5242880 Bytes
As far as I understand this means that if the user download+upload traffic doesn't reach 5 MB in the last 3 minutes, the XG will logout the user
I made a firewall rule that allows wan access for authenticated users and to show captive portal for unauthenticated users
On a PC I started to browse the internet then was asked to authenticate. I entered the credentials and opened one site then left the PC.
Ten minutes later I can still see the user is still logged-in in the XG live users. It takes hours before the XG finally logs out the user.
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