To test if an AFX has successfully connected to the local network, connect another device to the same network, and then type the following into a web browser (Chrome, Edge, etc. capitals matter): "internal IP"/afx/index.php?device="Hostname".
For example, a unit with a local IP of 192.168.1.10 and a Hostname of AutoFlex-123456 would be: 192.168.1.10/afx/index.php?device=AutoFlex-123456
The local IP and Hostname can be found in the About page of the AFX, accessible from the main menu.