Hi,
and welcome to the forums.
I haven' t yet worked with the VPN wizard but the required change is not complicated. You have to change the FortiClient' s config. If you open the FC console, VPN>your connection>Advanced>Edit, you' ll see a field named ' Remote Subnet' or the like.
It should read now
' Remote Subnet = 0.0.0.0/0'
and you change that to
' Remote Subnet = 192.168.123.0/24'
if 192.168.123.0 is the subnet behind the Fortigate that you are trying to reach. The syntax ' 0.0.0.0/0' is a placeholder for all subnets, so for all IP addresses on the internet as well. If that is your target subnet then ALL traffic will go through the tunnel to your HQ Fortigate.
Ede
"Kernel panic: Aiee, killing interrupt handler!"