Why can't one of my Airport express stations extend my wireless network?
Background:
I have an Airport Extreme cabled to my Comcast router.
I have three Airport Express units scattered around my house.
All have worked fine for many months and all are running version 7.6.4.
Problem:
Recently, one of the Airport Express stations had a yellow, flashing LED and a status of "Extended Network - This Airport base station was unable to extend the wireless network..."
Using Airport Utility, this station displays a connection quality status of "good."
This unit also has the exact same settings as my other two Airport Express units.
Using Airport Utility I instructed the unit to "Ignore" the status, and the LED turned green. But the status of "Extended Network" continues to display.
I've tried a hard reboot of the unit, but nothing changed.
Any suggestions as to how to correct this status?