VersionTracker notes an AirPort Extreme Base Station firmware 5.0.3 update for Apple’s new AirPort Extreme Base Station. “This firmware update fixes an issue where an AirPort Extreme network appears to be unavailable as displayed by the AirPort Menu Extra or the Internet Connection application. This behavior may result from excessive 2.4 GHz radio interference which causes the wireless network to disappear. The update allows the base station to more gracefully recover when exposed to sources of interference.” This firmware revision is not for use with the original (Graphite) or the dual-Ethernet (Snow) base stations.