I use my Mac Mini 3,1 as a music server with Plex, and i have been using it with wireless. I just installed a switch in that room so now i can use it with ethernet, but as soon as i plugged in the cord, and turned off the wireless, the Internet would not work at all. Network settings reads it as connected with an IP, but it won't go out for whatever reason. With the cord in, I can only access LAN computers. Now i did try leaving it in and letting the wireless on for the Internet, but when i transfer files to the machine or back from it, it goes over the wireless instead of the wire. What's going on with this thing?