Extend disclaimer only timeout

[smxko]

Hi,

we have a VLAN on a 40F that is being provided through some 3rd party access points. We enabled the disclaimer portal for that VLAN for guest access. We don't want them to type in an E-Mail or provide guest accounts.

The disclaimer portal works well but we need to extend the (idle) timeout to more than 300 seconds.

Where can I do that? None of the settings seem to alter that value.

I tried:

config user setting > set auth-timeout X

config wireless-controller timers > set client-idle-timeout X

config system settings > set auth-timeout X

In this article using a mail collection portal, it is somehow set to 10 days (864000) by default

Retail environment guest access | FortiGate / FortiOS 7.6.0 | Fortinet Document Library

But mine always looks like this:

192.168.3.17

        src_mac: 98:69:8a:XX:XX:XX

        type: disclaimer, id: 14, duration: 368, idled: 210

        expire: 90, allow-idle: 300

        flag(1000): src_idle

How can allow-idle be modified or set to a hard timeout?

Thanks a lot