I've done about four hours worth of searching and twice that amount in troubleshooting. So I came here looking for help. I have an Airport Extreme and two AExs. One AEx is an older g model and is working fine. The Extreme is an n model and is working fine. I have one AEx 802.11n that is problematic. Can't get airport utility to recognize it. Have rebooted the extreme and the computer multiple times. Have hard rebooted. Have attempted factory default reset. I plug it in and get a brief green light flash followed by solid amber. When attempting to do a factory default reset, I hold in the reset button and plug in the AEx. The amber light will flash, and then eventually the light will shut off completely. I have done this at least 15 times today. I've seen variants of this problem all over the place and tried the different troubleshooting techniques I've seen there. Does anyone have any ideas? OS is 10.4.11. Thanks!