Enable IPSec Pathfinder function

The IPSec Pathfinder function is disabled in the ex works state. When the IPSec Pathfinder is switched on, the VPN gateway also responds to the HTTPS port to any VPN IPSec requests.

Go to VPN -> IPSec -> Options -> Advanced Settings.

VPN -> IPSec -> Options -> Advanced Settings

Proceed as follows:

Enable IPSec Pathfinder mode.
Leave the remaining settings unchanged and confirm them with OK.