Just bought my dad a Mac mini. He has a Linksys (g) WiFi router that I want to remove. I have tried to setup. I get a yellow "LED" and it says "Wi-Fi does not have an IP address and can'y connect..." Sometimes it says "WiFi has a self-assigned IP address xxx.xxx and will not be able to connect to the Internet" and it is still yellow. I can see and connect to this WiFi on my iPad/iPhone but it still uses cell data. Also if I go to Sharing and check Wi-Fi I get the following box. If I hit Start (ironically it Stops) I lose all Internet connection and must reset the modem. I have searched and can't find what to do. I have tried to turn on internet sharing but don't seem to have the correct choses. What am I doing wrong and why is it so complex to setup?