Trying to set up DHCP_it can not got ip

I am trying to set up DHCP.

(REFER TO PICTURE)I didn't set up anything to L2 and sharer. because I want to use them like a hub.

L2(186) is same equipment. Fortigate that I am using now is a 3700D.

After setting interface, I set a DHCP Server in fortigate(interface>DHCP enable)

And IPv4 policy

1. LAN(port10)->WAN(port9) <=source:192.168.2.2~192.168.2.254, destination: all

2. WAN(port9)->LAN(port10) <=source:all, destination: port10

PC can not got DHCP ip. It shows ip address just 169.x.x.x

I am trying to solve this problem more than 10 days..

Is there something I have to set up?

https://drive.google.com/...2iYLe/view?usp=sharing