Q: blinking light

Check this article out:

Wi-Fi base station: Understanding and resolving a blinking amber status light - Apple Support

For me, it usually means my internet is offline, or there is a software update available.

Check for updates using Airport Utility as there was a firmware update released in May / June.

In usual AirPort setups, the orange blinking light indicates lost Internet connection, rather than anything specific to your Wi-Fi connection.

Is your internet service reliable? You could also try disconnecting the power cord to your AirPort station to force a reboot.

your air port extreme is working fine , when you plug in it will be connected , & when its unplugged it will show orange .