10-19-2011, 02:13 AM
I too have a similar problem, where no matter what I do, the Airport Utility on my computer cannot find the Airport Express device on my WiFi Network.
My PC has a solid ethernet connect to an Airport Extreme base station that is the main Wifi router.
So after visiting my local Perth store, the tech expert gave me very simply instructions as follows:
1) Unplug the ethernet cable to the Airport extreme and plug it into each airport express device.
2) Run Airport Utility that will now show the device since it is directly plugged into the PC.
3) Config the device to "join existing network" etc and update.
4) Now reconnect the ethernet back to the Airport Extreme router and this time when you run the airport utility it should also list those Airport Express devices you have just configured.
Hope this helps