Dual WAN on same subnet no connection to WAN2

Hi,

We have 2 WAN connection with each a fixed IP in the same subnet and the same default gateway

WAN1: DHCP FIX IP 81.82.A.X /18  DG :81.82.z.1

WAN2: DHCP FIX IP 81.82.B.Y /18  DG: 81.82.z.1

WAN1 works fine but i even can't ping to interface of WAN2

on our old fortinet we had to enable allow-subnet-overlap

WAN1 is used for company internet and incoming port forwards

WAN2 is used for additional HTTP/HTTPS trafic and site to site VPNs

thanks in advance for you help