I'm trying to share my Ethernet connection on my iMac to my iPad via Airport. I've tried every setting I can think of, every piece of advice that Google brings up, even entering IP addresses etc. manually. Nothing works. I can get Airport to say that it's connected, but the iPad won't connect to the internet at all. Sometimes it will try to load a webpage or the app store, but then later it will just say that it's not connected again. The most frustrating part is that it worked perfectly yesterday.