RBK30 wired connections

setup problem.  i have a wired private network that includes a Dell server.  in addition, i access the server remotely and i have a guy who works for me who access the server.  both are by windows Remote Desktop Connection.

in trying to set up the router, i could not get Orbi to recognize the wired network.  Assume fixing this problem will then allow remote access or is there a second setup for this?