purchased in Sept. i have it set up in client mode. I use it solely for Airtunes. Problem: connection keeps getting lost. amber light keeps flashing so i have to unplug and plug in again. sometimes i get a connection sometimes i don't. the light may be green but it doesn't show up on my airport utility even after rescanning numerous times. when it does actually show up on my airport utility, i'll update the configuration and then it drops from my airport utility again. sometimes i'll be successful in setting it up but when i go to Itunes and try to connect to remote speakers, it doesn't connect. i think i've tried every trouble shooting tip out there. do i have a defective product? i've reset to factory settings numerous times. there's an AirPort Express Firmware Update 6.3. but i have the 6.3 version of Airport express. should i update anyway?