I have an Acer S3 with ubuntu 12.10.
Every time I connect to wireless the connection is lost after a few hours and the wireless menu (from the notification area in the upper right) shows "Hardware unavailable" next to wireless.
It's bad enough that this happens and I have no idea why, but also my only resolution is to restart ubuntu which is a pain.
Any idea how to resolve this? Or how to make the wireless available without having to reboot