The WAN port on the UniFi Express 7 cannot be directly bridged to a LAN port in the traditional sense, as it is designed for WAN connectivity. However, you can use the device in a configuration where the WAN port is utilized for wired backhaul, effectively integrating it into your existing LAN setup. For a setup with two LAN ports and no WAN, you might need to consider using the device in a mesh or bridge-like configuration, but this would require specific network setup and configuration. If you need two dedicated LAN ports without a WAN port, you might need to explore other options or configurations within your network architecture.