Comment 37 for bug 1210785

this tutorial can fix the problem, for those who can't waith for the fix in sausy-13.10 64 bit, i did it exactly, read completly:

download the package file attached to this comment, it contains the fix from trusty wpa 1.0-3ubuntu4, and network-manager-gnome becouse we need to unistall it to fix the problem.

with synaptic unistall wpa-supplicant completly
with synaptic unistall network-manager-gnome, just uninstall, if it was allready uninstalled it's fine.

you will get without internet.

reboot your system,

install the deb files in the package simply with ubuntu software center in this order:

wpasupplicant_1.0-3ubuntu4_amd64
hostapd_1.0-3ubuntu4_amd64
wpagui_1.0-3ubuntu4_amd64
network-manager_0.9.8.0-0ubuntu22_amd64
network-manager-gnome_0.9.8.0-1ubuntu5_amd64

reboot your system again,

and this is it, the fix is done, and the internet comes back without afecting the wifi passwords.

PD: when i tried to install the fix from trusty without uninstall network-manager-gnome, that didn't fix the problem.