[ubuntu] Flaky wireless since enabling WPA2

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http://ubuntuforums.org – I've got a BCM 4312 card on a Dell laptop running 10.04 and an Apple Airport network. Since I configured the Airport to use "WPA2 Personal" Authentication, my connection is flaky: it drops for no apparent reason and sometimes I can't connect at all. When authentication is turned off, the connection is rock solid. Here's an example from the syslog of a failed attempt to connect: Code: Oct 26 19:31:24 firefly NetworkManager: <info>  Activation (eth1) starting connection 'Auto Rittenhouse' Oct 26 19:31:24 firefly NetworkManager: <info>  (eth1): device state ch (HowTos)