Apple has released Firmware Update for AirPort Extreme Base Station and Time Capsule Base Station, updating the version to 7.4.2.
Apple stated:
The Time Capsule, AirPort Extreme, and AirPort Express Base Station with 802.11n* Firmware 7.4.2 update provides several fixes, including:
Fixes some problems with extending and maintaining connectivity with extended networks
Fixes an issue with clients that enable 802.11 "Power Save"
Fixes connectivity issues with some third-party devices
Fixes an issue when the base station is configured for PPPoE
Fixes some Back To My Mac issues with connectivity and support for third-party routers
It is recommended that AirPort Utility 5.4.2 or later be installed before upgrading to Firmware version 7.4.2.
In March 2009, Apple released updated models of AirPort Extreme Base Station and Time Capsule Base Station, featuring simultaneous dual-band and guest networking.
AirPort Extreme is priced at US$179. Time Capsule Base Station is priced at US$299 and US$499 for 1 TB model.
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