FortiManager
FortiManager supports network operations use cases for centralized management, best practices compliance, and workflow automation to provide better protection against breaches.
WinterSnowYap
Article Id 377770
Description This article describes how to troubleshoot Install Preview empty for the VPN manager setting at FortiManager.
Scope FortiManager.
Solution

During the policy package installation, the Install Preview shows 'No preview result'.

 

202502_FMG_VPNManager_InstallPreview_01.PNG

 

At FortiManager (VPN manager), the VPN Profile only has 1 Gateway.

It requires at least 2 Gateways, another device can be either a Managed Gateway or an External Gateway.

Managed Gateway, is the device that is managed by FortiManager.

External Gateway is the device that is NOT managed by FortiManager.

 

202502_FMG_VPNManager_InstallPreview_02.PNG

 

202502_FMG_VPNManager_InstallPreview_03.PNG

 

After adding the second Gateways, the install preview will be able to show the VPN Manager configuration.

 

202502_FMG_VPNManager_InstallPreview_04.PNG