Last night, I was able to get my Mac to share the Ethernet port via Airport with my Touch. I installed several apps, browsed a few pages and even managed to transfer some apps using SFTP (Cyberduck). I tried doing the very same thing today but my iPod is no longer receiving data thru WiFi. I've checked the DNS info and everything appears to be just as it was yesterday but for some reason if I try to refresh Installer or browse the web, my iPod says it is unable to. Any ideas to solve this?