I've been having a few troubles sharing the internet from my MBP to my Xbox 360 lately. Cliffs: My university only lets us have ONE wireless card registered on the system for security reasons, or else I would just use the Xbox 360 Wi-Fi Adapter. I share the internet over an ethernet cable to my Xbox. Lately something weird has been happening, internet sharing stops working. Not just a simple drop in the Airport connection, but the actual setting for Internet Sharing changes on it's own. My computer isn't restarting when this happens, it's random when it's still online. Usually if it drops signal from the access point it still starts working again after the signal picks up. I go into the Sharing preferences to find that the Internet Sharing check box has unchecked itself. Once I check it back and restart my Xbox 360, it works again. Any thoughts or known solutions to this issue?