To connect to the remote USB devices, you will need to share them on the
USB over Ethernet server first.
When a USB device is being shared, it becomes inaccessible for use on the computer it is connected to.
To connect to the shared USB devices over WAN, make sure that the server is assigned with the public IP address.
Since USB Network Gate shares a USB port and not an individual device, you will be able to hot-swap the devices connected to the shared USB port and they will become automatically shared as well.