I installed 4.8 hwe edge from the repositories on my 16.04 system (Macbook Pro with Broadcom 4331 card). I lost wireless.
I rebooted, made sure I was up to date, etc etc. Nothing in 4.8 would work. Anything 4.4.x would work fine though. I received an error when installing via terminal much like the error in the original post. This gave me a lead which ultimately lead me here. Installing via GUI (system settings >> software and updates >> additional drivers) did not yield any sort of error. In the end, nothing worked with getting wifi working again on 16.04.1 + BCM4331 + HWE Edge Kernel 4.8 -- until I downloaded the .deb Vincent linked in post 14 above. I was skeptical to try it as the version numbers of the .deb seemed to match what was in the repos when I searched Synaptic, but alas, I tried it. Immediately I reconnected to wifi on my 5ghz network. I installed it via dpkg -i in terminal, and the output looked cleaner. Given I tried installing the 4.8 hwe edge kernel here on February 2nd and ran into this problem... yet 16.04.2 is due out within days... I raise the difficult question and can't help but to wonder if things are "ready". Otherwise I would anticipate an additional flurry of reported issues coming in relating to this topic. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1595765 Title: Wifi drivers all fail to build [error: ‘IEEE80211_BAND_2GHZ’ undeclared here] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1595765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs