Seth, Thanks for your comments. I am running 3.13.0-61 and there is no wireless driver installed at all. The "Additional Drivers" application lists the bcmwl driver as in use, but when I run "dkms status" it lists the wl driver as installed for other kernels but not for the current one. Then I tried removing the package "bcmwl-kernel-source" and reinstalling it, with apt-get, and that worked after I installed the header files for the current kernel with "sudo apt-get install linux-headers-$(uname -r)".
Upon reinstallation of bcmwl-kernel-source, the wifi came up by itself. In retrospect it all makes sense considering that the package must be built from source. What is surprising is that the bcmwl-kernel-source package doesn't depend on the current kernel's package. I guess it can't because it would depend on all kernel's sources. In summary, to make the wifi work by reinstalling the wl driver for the current kernel: $ sudo apt-get remove bcmwl-kernel-source $ sudo apt-get install linux-headers-$(uname -r) $ sudo apt-get install bcmwl-kernel-source Thanks a lot for your help! Got me in the right direction. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1463845 Title: Regression: no wifi in macbook pro 11,1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1463845/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs