My son recently, through his grandmother, bought a desktop computer for editing video, and he is using a Realtec usb wireless network adaptor to connect to the router. He is able to connect to the network, but his adapter is not showing up in the list of connected devices, so I have no way of managing it. I tried entering it as a new host, (without really knowing what a host is), by entering the name, IP address and MAC address from his computer, but it still did not appear as a connected device. How do I force his computer to appear in the list?