I have an open wifi network setup that I can't connect to. There are several PC users in the house able to connect, but my iPhone and MBP are unable to establish a connection. Stranger, is that when I plugged into the ethernet, my laptop was also unable to connect using the "Automatic location." I setup a new location and was able to use ethernet, but wifi is still not working. I used to be able to connect to the network and as far as I know no settings have changed. I've tried resetting the cable box, wireless router and the computers, and I also tried dumping all network related preferences I could find. Any help is appreciated.