I'm having an issue with my Air since I upgraded to Snow Leopard... Every time I close the lid and it goes to sleep, our Airport Extreme seems to die. We have 2 iPhones and a MacBook that also use the Airport Extreme and once the Air goes to sleep, none of the rest of the devices can find the Airport Extreme until we unplug it and plug it back in. The only workaround I've found so far is to turn off networking on my Air before I close the lid but this is annoying and I forget sometimes which mean everyone else gets booted until we restart the Airport Extreme... Has anyone else had this issue? Any ideas what might be causing it?? TIA!