I will describe the setup I want to achieve and then I'll describe the current issue.
I have two different networks that I want to add Wifi capability for them, let's call them net1 and net2.
In addition I want to have a guest open Wifi that uses net2 to access the internet but with different IP range.
So what I did was to connect the 2 networks to the AP and set the packet forward to "Bridge to WAN".
I created two local subnets that corresponds to net1 and net2 and gave them different Access VLAN number.
In addition I created a 3rd local subnet and configured it to give DHCP on a different scope.
I then created 3 Wireless networks.
The first two are configured with "Bridge to WAN" and the 3rd is configured with "Local Subnet NAT and Route to WAN"
The result is that the Wifi networks that configured with Bridge to WAN are working as expected.
The 3rd guest Wifi which is configured with it's own DHCP and "Local Subnet NAT and Route to WAN" is active and supply DHCP but isn't accessible to the internet.
How should I set it up?
I added some poor image :)