Apple released Airport Client Update 2009-002 today fixing some minor issues in Snow Leopard's wireless access software. A restart is required.
This update is recommended for all Macintosh computers running Mac OS X Snow Leopard 10.6.2 and includes fixes for the following:• Inability to turn AirPort on or off in some cases after upgrading from Mac OS X Leopard• An occasional loss of network connection when using Wake on Demand• Inability to create a computer-to-computer network, or share the Internet connection on some MacBook, MacBook Pro, and Mac mini computers
