Hello everyone, This may have been asked before, but I couldn't find an answer to my specific problem. I am living in an apartment where wifi is provided. I have access to the modem and router as well as their settings, but cannot directly connect to them. I am using my Airport Extreme to join this network. This works well for all of my wireless devices, but when I try to connect my desktop via ethernet to my Airport, it cannot connect to the internet. When I plug my Macbook into the ethernet, the Network pane tells me the following: "Ethernet: Connected. Ethernet is currently active and has the IP address 169.254.115.9." However, Safari tells me I am not connected to the internet. The Airport is set up to join a wireless network. When I select "Extend A Wireless Network", it tells me "The network you selected cannot be extended." The router is a Cisco, so I am not as familiar with the interface as I am with an Airport's. There is no obvious "allow this network to be extended" equivalent, but there may be another way that I am unaware of. So my question is, is it possible to wirelessly join a network with an Airport, and then connect a computer to that airport via ethernet?