The new madwifi-ng seems to work with -Dwext, but I'm not sure if this works with the standard ubuntu wpa_supplicant.
-- wpasupplicant in dapper doesn't work with madwifi-ng https://launchpad.net/bugs/47144 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs