my problem has gone away after disabling 802.11n in my router. on b/g
network settings no problems on wpa
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wpa_supplicant causes system to crash.
https://bugs.launchpad.net/bugs/468519
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I am also experiencin full system crashes on wpa with dell studio 15 ubuntu
9.10.
description: Wireless interface
product: PRO/Wireless 5300 AGN [Shiloh] Network Connection
vendor: Intel Corporation
physical id: 0
bus info: p...@:05:00.0
logical name: wmaste