I'm trying to do a VLAN switch setup on my AirRouter, but I just realized that the tutorials expect you to use a normal LAN port. How do I set this up on the WAN port so I can power it off of the same cable as I use for data? (Only accepts PoE in on WAN port)
AREDN is designed around standardized deployments, the expectation with airrouter is the WAN port is a WAN port, and then there are 3 LAN ports and a DTDLINK port.
If your looking for a device with a single cable thatn is not really what the AirRouter is used for and you would probably be better off with just a bullet which uses everything on one port for power and data. The AirRouters are intended to be small units that break out all the ports for you (so you don't need a managed switch)
In addition the AirRouter is treated similar as a bullet with smartswitch built in, so you end up its already 'standardized' to majority of other supported devices but its just inside of a single case and doesn't need your interaction to configure the smartswitch. The AirRouter isn't intended to be an 'all around' device its a very specific mission of providing a break out of the different port types in one unit and not combining them together.
Personably I rather break it out with dedicated devices and I rather tower mount the unit which makes the AirRouter a no-go on many fronts but there are some who don't like this method so the AirRouter fills that very specific need of being broken out already and not to require interaction.