I have an AirPort Express (802.11a/b/g) that is configured to work with a TimeCapsule. For almost two years everything works fine, and the AirPort Express is configured to extend the range of my WiFi signal that the TimeCapsule is spreading.
Yesterday, I noticed that I was unable to join the WiFi using the AirPort Express. I checked the light, it was amber.
I unplugged the AirPort express, and re-plugged it in to restart it. Again no green light. Only amber.
So I decided to hard reset it. I pressed the reset button for as long as 10 seconds, and let it go when I noticed the amber light is flashing.
When I let go of the reset button, I noticed that the light alternates between amber and green. It lights amber for about a minute, then green for 2 seconds, then back to amber for another minute, and so on.
After that, I opened AirPort Utility on my iMac and MacBook Pro and waited for the AirPort Express to show up. But it never was detected.
I treid to reset it again within a closer range of the DSL router and the TimeCapsule. Same problem.
I checked the Apple AirPort Express Support, all that I was able to find is:
|Alternating amber/green||When multiple Wi-Fi base stations are available during setup, you can trigger this behavior by using the Identify feature in AirPort Utility|
I checked AirPort Utility, but there is no (Identify feature) in any menu item.
I even unplugged the AirPort Express for 4 hours and tried again, hard reseting again, unplugged my wireless phones, but that did not make the AirPort Express show up in the AirPort Utility.
I am using AirPort Utility 5.6 on Mac OS X Lion