I've lost my network adapter, and I'm too far from my router to use a cable. I have my 360 plugged into my laptop via Ethernet cable, and I have previously had a successful connection by using network sharing and with a network bridge. However, both of those solutions only worked the first time. Now, when I try to turn on network sharing, it says that it cannot accept commands, and when I try to use a network bridge, my 360 can connect to the laptop, but not to the WiFi. I'm running on original windows 8. Please help.