I can come up with no explanation why it would have been working before.
That kernel doesn't have support for your wireless hardware.
You've got a few options for getting it working. Probably the easiest is
to install the backports drivers. For this you need to install the
linux-backports-modules-cw-3.8-precise-generic package, either using the
software center or by running "sudo apt-get install linux-backports-
modules-cw-3.8-precise-generic" in a terminal. You'll need to reboot
after doing this.
The other options are either to upgrade to a newer release or use our
hardware enablement stack. Let me know if you want instructions for
either of these.
It doesn't seem necessary to add support to Linux 3.2 since we already
have a couple of options for getting your hardware working in 12.04, so
I'm changing the status to Won't Fix.
** Changed in: linux (Ubuntu)
Status: Incomplete => Won't Fix
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https://bugs.launchpad.net/bugs/1248485
Title:
No wireless connection after updates 12.04LTS
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