I’m running Ubuntu 13.04 and burning through the daily updates and hit the latest kernel down the proposed repo and ran it only to kill my wireless on my Macbook Pro 8,2. Basically, it did not like it. The update that did the damage was 3.8.0-13 but I was able to backtrack to 3.8.0-12 and even then, that didn’t help. I was still getting wonky wireless connectivity. Wireless was always a mess running 12.04 or 12.10 on the MBP, but it has been wonderful on 13.04 right from the start, so this was weird.
I decided to try and reinstall the bcmwl-kernel-source after reinstalls of the kernel and attempts at disabling the driver.
Reinstalling the bcmwl-kernel-source did the trick and I got connectivity via the Macboook 8,2 Broadcom immediately once again. For now, I’m going to stay on 3.8.0-12 because it seems to be stable and play nice.