About AirPort Base Station Firmware Update 7.6.7
Firmware update 7.6.7 is recommended for all Apple 802.11n Wi-Fi base stations including AirPort Express, AirPort Extreme and AirPort Time Capsule.
This update improves the stability and performance of your base station.
Fixes an issue which may prevent communication between clients on the same network
Improves performance with an extended guest network
Addresses potential naming conflicts with Bonjour Sleep Proxy
For detailed information on AirPort base station firmware updates, including instructions how to install the update, please visit: http://support.apple.com/kb/HT1218
For more information on using AirPort products, go to the Product Support Page at: http://www.apple.com/support/airport