Welcome At home I have a WiFi router OvisLink AirLive POE 1Watt 3G 802.11n (Air3G) and to it via WiFi plugged the Airport Express is plugged in the jack to send music and a printer into the USB. After resetting the Airport settings works, but after a few hours, suddenly dies, it can not be detected by the Airport utility and do not see it to be connected to the router and you can not use external speakers. I would add that the Airport is to join an existing WiFi network, so I have set. The range is 90%. This light glows green It seems as if it is somehow blocked, to sleep, off the electricity does not help, the only way out is reset. How all is well, after a hard reset the printer is visible, sends the music from the iTunes properly. The software is the latest. Maybe someone had a similar problem?