Comment 1 for bug 271191

This is directly caused by having linux-backports-modules-hardy (and it's dependencies) installed. This is the case out of the Dell factory image.

The offending module is ieee80211_crypt.

To work around the scenario, you need to follow the following steps:

1) sudo apt-get remove linux-backports-modules-2.6.24-21-generic
2) sudo rmmod ieee80211_crypt
3) sudo modprobe wl

It should work properly going forward then, but this bug needs to be fixed before lrm is released from proposed.