AX-1800 - Luci - br-guest does not appear in devices list

If you want to use both the network port and Wi-Fi on the guest network, then you follow these steps.

  1. create a bridge device named br-guest and add eth3 to the bridge ports
  2. delete eht3 from br-lan
  3. Edit the Guest interface, remove the bridge configuration, and check br-guest in the device options
  4. Find the guest Wi-Fi in Network/Wireless and turn off the Isolate Clients option

The /etc/config/network configuration file should like:
image

result:
image