

However, if I put the Fortigate gate back into the equation: I can then contact (ping/ssh) the switch from my desktop ( 192.168.1.10/24), and the controller running on my desktop sees the switch, and can "adopt" it.


The UniFi controller is installed on my desktop ( 192.168.1.10/24). I just bought a UniFi US-8 (8 port managed PoE switch) and I'm trying to set it up, but I can't get the UniFi controller to see the device the controller just says "No devices found."
