I still keep AirPort routers in our house, because they perform fine and are relatively easy to manage. Of course, one AirPort Express proved to be stubborn to configure from my macbookpro12,1.

I had revived this AEX just a day ago and wiped it clean, but any follow up attempts to configure from my MacBook Pro resulted in an error while updating the configuration.

The fix was relatively easy. I moved to our Mac mini which has a wired connection to the network and it was able to update the AEX’ configuration. Better news, follow up attempts to change the configuration from my MacBook Pro are now successful.