I have finally got the Broadcom wifi network card to work--Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01). This article was very helpful. However, every time I boot the computer, I have to go into terminal and enter the following commands in order to get the wifi working:

sudo modprobe -r b43 ssb wl
sudo modprobe wl 

How can I connect to the wifi automatically when I boot my computer without having to manually enter the commands above manually every time I boot?

Thank you.

  • 1
    Do you mean wifi network card, not router? What is your Ubuntu version?
    – Pilot6
    Jun 29, 2015 at 21:38
  • Yes, I mean the wifi network card. I am using Ubuntu 14.04 LTS.
    – roshani
    Jun 30, 2015 at 21:49

1 Answer 1


You have this problem, because you installed b43 driver.

It can be fixed by

 sudo apt-get install --reinstall bcmwl-kernel-source

This package will blacklist b43 permanently.

  • Thanks for the suggestion! I entered the command you suggested in Terminal, but after reboot still the same issue. I have to manually enter the two command lines above in order to get the wifi to work.
    – roshani
    Jul 2, 2015 at 0:01
  • Please add output of cat /etc/modprobe.d/broadcom-sta-common.conf to your question.
    – Pilot6
    Jul 2, 2015 at 0:04
  • output: cat: /etc/modprobe.d/broadcom-sta-common.conf No such file or directory
    – roshani
    Jul 3, 2015 at 1:48
  • What ls /etc/modprobe.d shows?
    – Pilot6
    Jul 3, 2015 at 7:09
  • It shows: /etc/modprobe.d: Is a directory
    – roshani
    Jul 7, 2015 at 18:46

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