ASUS BRT-AC828 (HW Ver: 1) Dual-Band AC2600 - Dual WAN Test

I setup PPPoE servers using a RB750G to test dual WAN features on 2 scenario :

  1. WAN1 + WAN2 both normal PPPoE without any vlan
  2. WAN1=Vlan.500 (select UniFi profile under LAN) using either LANport 5/6/7/8 + WAN2=normal PPPoE

Somehow for vlan WAN it's unable to use the physical WAN1 port, need to bridge use LANport 5/6/7/8, not sure whether it's the switch chip or FW limitation ...