When installing from a live USB, the wired connection worked. Upon reboot the wired and wireless do not work now.

lspci shows them as:

Wired BCM4401-b0

Wirelss BCM4311 R2

How can I fix this?

"Edit" sudo modprobe b44 and the terminal cursor sits there solid. I dont see the typical command line response.

Edit: E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem. ~$ sudo dpkg --configure -a Setting up bcmwl-kernel-source ( ... Removing old bcmwl- DKMS files...

-------- Uninstall Beginning -------- Module: bcmwl Version:

Kernel: 3.11.0-12-generic (i686)

Status: Before uninstall, this module version was ACTIVE on this kernel.

wl.ko: - Uninstallation - Deleting from: /lib/modules/3.11.0-12-generic/updates/dkms/ - Original module - No original module was found for this module on this kernel. - Use the dkms install command to reinstall any previous module version.


DKMS: uninstall completed.

Deleting module version:

completely from the DKMS tree.

Done. Loading new bcmwl- DKMS files... Building only for 3.11.0-12-generic Building for architecture i686 Building initial module for 3.11.0-12-generic Done.

wl: Running module version sanity check. - Original module - No original module exists within this kernel - Installation - Installing to /lib/modules/3.11.0-12-generic/updates/dkms/


DKMS: install completed.

Do I restart the laptop?


1 Answer 1


Please hook up the ethernet and open a terminal and do:

sudo modprobe b44

Your ethernet should now be working and we'll use it to fix your wireless:

sudo apt-get purge bcmwl-kernel-source
sudo apt-get install linux-firmware-nonfree

Detach the ethernet, reboot and tell us how it's working.

  • sudo modprobe b44 and the terminal cursor sits there solid. I dont see the typical command line response.
    – pudland
    Feb 26, 2014 at 23:35
  • Any clues in the log? dmesg | grep b4
    – chili555
    Feb 27, 2014 at 0:49
  • My laptop wont boot now. Trying to re-install now.
    – pudland
    Feb 27, 2014 at 1:49
  • New install of 13.10. Wired works now. Software & Updates: Additional Drivers shows the Wireless 1390 WLAN Mini-card is not working and shows 2 options: bcmwl-kernel-source(proprietary) and Do Not Use This Device. The second radio button is highlighted. Suggestions? Thanks
    – pudland
    Feb 27, 2014 at 2:52
  • dmesg | grep b4 shows a BUNCH of stuff. Im reading a bunch of errors now.
    – pudland
    Feb 27, 2014 at 2:59

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