Off

AirPort Extreme is unplugged.

Flashing green

AirPort Extreme is starting up.
If you choose Flash On Activity from the Status Light pop-up menu (on the Base Station pane of AirPort settings in AirPort Utility), the status light may flash green to indicate normal activity.

Solid green

AirPort Extreme is on and working properly.
If you choose Flash On Activity from the Status Light pop-up menu (on the Base Station pane of AirPort settings in AirPort Utility), the status light may flash green to indicate normal activity.

Flashing amber

AirPort Extreme cannot establish a connection to the network or the Internet.

Solid amber

AirPort Extreme is completing its startup sequence.

Flashing amber and green

There may be a problem starting up. AirPort Extreme will restart and try again.