We’re deploying a pair of Balance 580’s in Drop-In mode. So for the primary ISP, we just followed this guide and everything works fine. We have the first ISP in WAN2 since we can’t use WAN1 as it’s only for ‘LAN Bypass’. So for that first ISP, we have a public IP on Balance 1, a public IP on Balance 2, a public IP on the Balance VIP, and then a public IP on the firewall (since it’s drop-in mode). So that’s 4 IP’s with ISP1. So we sync’ed that config and everything works as expected. But then we add ISP2 and that’s where I get confused. Do we just need 1 IP (essentially a VIP) for that ISP2 on WAN3 or do we need an IP on each Balance? Once we enable sync, I’m only able to edit WAN settings on the Master. I suspect the 3 IPs (4 counting the firewall) are only needed on that primary WAN that’s also doing the VRRP/HA but I wanted to verify that setup for additional ISP’s in an HA config.