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Thread: No Wireless on Broadcom BCM4312 802.11b/g LP-PHY

  1. #1
    Join Date
    Aug 2013
    Beans
    2

    No Wireless on Broadcom BCM4312 802.11b/g LP-PHY

    Hello all.

    I am a relatively new user to Linux, and installed the Ubuntu 12.04 on my netbook (Dell Latitude 2100) after having some compatibility issues with another Linux distro I was using. Everything works great, however I cannot seem to get my wireless to work. After a bit of searching, I have tried several suggestions posted on these forums, but none seem to have helped solve my wireless issue. Specifically, I have tried to install new drivers, uninstall and reinstall new / different drivers for my card, yet I still have no wireless. Below you can see my specific wireless card information. Any help that you can give me in resolving this issue would be greatly appreciated! Thank you in advance!

    Code:
    -netbook:~$ lspci -nn | grep 0280
    0c:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)
    -netbook:~$ lspci -nn -d 14e4:
    09:00.0 Ethernet controller [0200]: Broadcom Corporation NetXtreme BCM5764M Gigabit Ethernet PCIe [14e4:1684] (rev 10)
    0c:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)
    Last edited by Dr.Pineapple; August 25th, 2013 at 08:06 PM. Reason: Solved problem

  2. #2
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
    6,712
    Distro
    Ubuntu Gnome 14.04 Trusty Tahr

    Re: No Wireless on Broadcom BCM4312 802.11b/g LP-PHY

    You only need the missing firmware:
    Code:
    sudo apt-get install firmware-b43-lpphy-installer
    Remove the STA driver and its config, if applicable:
    Code:
    sudo apt-get remove --purge bcmwl-kernel-source
    sudo rm /etc/modprobe.d/blacklist-bcm43.conf
    sudo rm /etc/modprobe.d/broadcom-sta-common.conf
    sudo rm /etc/modprobe.d/broadcom-sta-dkms.conf
    Reboot.

  3. #3
    Join Date
    Aug 2013
    Beans
    2

    Re: No Wireless on Broadcom BCM4312 802.11b/g LP-PHY

    Hey thanks, Praseodym!

    Your suggestions worked perfectly! I appreciated your response and help!

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