Port forwarding in Fortigate 60B

[rm_beginner]

Hi Guys, My Fortigate 60B is connected to a wireless DHCP router in WAN1. When I connected it. I SETUP my FTG Network Interface as DHCP. So I get 192.168.100.17. The default gateway and the DNS. In short I have Internet Connection on my Internal network 192.168.1.99 as my gateway to my internal network with server dhcp. I want to setup a port forwarding RDP to 3389 port so I created virtual Ip and the policy. Virtual ip: assign port tcp 3389. External ip xxx.xxx.xxx.xxx and internal ip of my pc 192.168.1.101 WHEN I CALL THE EXTERNAL IP WHY MY PORT FIRWARDING IS NOT WORKING? What's wrong in my setup? Thank you.

[rm_beginner]

Sir, There is no issue in my HUAWEI it is working fine.

The issue is what I am going to edit inside the HUAWEI if I need to edit it.

I know my external ip in what is my ip site..

Do I need to create port forwarding in HUAWEI to FTG or what?

what ip i am going to put is it the FTG router or FTG gateway?