A little beyond what I've done before, but I'm giving it a shot! When I use powershell or command prompt, I get "connection timed out" when using the IP of the miner. It's connected over Ethernet with ports 8333 and 3333 open. When I simply try to ping the IP address, it gives me request timed out with one "destination host unreachable".
Your device either has no Ethernet connection or you're using the wrong IP. You can hook up an HDMI monitor or check your DHCP server to see if the miner has an IP and if so, which one.