Computer behind Fortigate gets no DHCP but takes internal IP - FGC-60

[DCR81]

Hello, We have about 70 Fortigates in our company and in some we have problems with the accessibility of the connected computer.

Our Fortigates all have a fixed IP address from the corporate DNS server !

On Fortigate is a machine and a computer, the policy has been configured and that's how it works.

The machine is at Internal 1 and has the IP 192.168.2.1

The computer is connected to wan2 and has the IP 192.168.101.1

at Wan1 is the company Internet with fixed IP adress.

For some it works but some we get when we ping the Computer the "internal" IP so 192.168.101.11 displayed.

However, this can not be achieved, the computer should actually get a DHCP address.

What can this be?

as an an example:

Ping is executed for computer1 [192.168.101.11] with 32 bytes of data:

[Toshi_Esumi]

Wan2 port on FG60C(?) is configured with DHCP client by default. Did you change the setting to static before configuring DHCP server with the interface?