I am setting up a Fortigate 60F (FortiOS v6.0.9) with SD WAN for failover from a PPOE fiber connection (WAN1) to a DHCP 4g router (WAN2) but am running into an issue.
WAN1 and WAN2 work individually with my IPv4 policy when configured as the outgoing interface, but when I add WAN2 to the SD WAN and change the IPv4 policy outgoing interface to SD WAN my clients have no internet connection. I have WAN2 as the single interface in the SD WAN with a load balancing rule for 100% of the sessions as I don´t want to remove the WAN1 connection from my other policies until the SD WAN is working.
I have configured a performance SLA with a successful 184.108.40.206 ping on the SD WAN.
Any help would be greatly appreciated.