NAT Reflection + Inbound Load Balancing
I configured Load Balancing for my web servers and unchecked "Disable NAT Reflection" box but I still can't reach my web servers via WAN IP (but it's reachable from Internet). What should I do now? How can I reach my Load Balancing pool from my LAN? :)
For that you need extra NAT. The problem is that if your clients and servers are on the same subnet, the servers will respond directly back to the client, bypassing the load balancing, it doesn't really have much of anything to do with NAT reflection.
What you need to do is go to Firewall > NAT and switch to manual outbound NAT. Then add a rule to translate on the LAN interface with a source of your LAN subnet and a destination of your LB pool servers, so it will alter the traffic so it looks like it comes from the source address of the firewall.