Inside the A1 G4 manual, pages 10-11. UPnP discovery is supported by the OS.

When I check my PC, File Explorer > Network > My device is not detected. There are 8 devices in the test network router UPnP service list. Is only UPnP port forwarding supported?

Should this part of the documentation be corrected?

Please view video link: https://screenrec.com/share/0DPMkU4BqY