FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
This article describes how the external captive portal configured on an interface should work with and/or without a group specified for authentication.
Scope
More explanation on the behavior for external captive portal configuration on the FortiGate when groups are specified and when there are not.
Solution
With 'Allow All' selected for user access, it will only use the local disclaimer stored on the FortiGate and not forward the client to the external portal.
To have the external captive portal to display, it is then necessary to select a group by selecting 'restricted groups' and choose the group wanted.
