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Thread: Broadcom 4312 Not find Wireless connection - Ubuntu 12.10

  1. #1
    Join Date
    Oct 2012
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    [RESOLVED] Broadcom 4312 Not find Wireless connection - Ubuntu 12.10

    Code:
    sudo modprobe -r b43 ssb wl 
    sudo apt-get remove bcmwl-kernel-source
     sudo apt-get install build-essential dkms linux-headers-generic 
    sudo  apt-get install bcmwl-kernel-source
    when i do this code , my computer find my wireless connection , but when i restart my computer , it comeback like the first time , he doesn't find any wireless connection
    i have broadcom 4312 and Ubuntu 12.10
    Last edited by moroccan92; October 25th, 2012 at 10:09 PM.

  2. #2
    Join Date
    Dec 2009
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    Re: Broadcom 4312 Not find Wireless connection - Ubuntu 12.10

    Those are not the right drivers for your wifi card.

    Remove all of the drivers you have installed. Use 'Synaptic Package Manager' to do this (a GUI interface).

    If not already installed do
    Code:
    sudo apt-get install synaptic
    In Synaptic do a search for bcm. all packages with a green box next to them select for complete removal.

    Then mark 'firmware-b43-lpphy-installer' for installation and accept the recommended for installation. Finally click on 'Apply'.

    If prompted to reboot it is safe to do.

    Your wireless should now be working.

    Thank you

  3. #3
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    Oct 2012
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    Re: Broadcom 4312 Not find Wireless connection - Ubuntu 12.10

    i do exactly what you say , and it's still don't work

  4. #4
    Join Date
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    Re: Broadcom 4312 Not find Wireless connection - Ubuntu 12.10

    Okay we will now go through the diagnostic process.

    Open a terminal. Copy and Paste this command - to avoid any typos -
    Code:
    wget -N -t 5 -T 10 http://dl.dropbox.com/u/57264241/wireless_script && chmod +x wireless_script && ./wireless_script
    If nothing happens follow the instructions in this post. http://ubuntuforums.org/showpost.php...58&postcount=8 to generate the text file.

    I have to disappear for a while and will check back later so do not panic if no reply when you really expect one. Got to go to work.

    Thank you

  5. #5
    Join Date
    Oct 2012
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    10

    Re: Broadcom 4312 Not find Wireless connection - Ubuntu 12.10

    any of 2 solutions works :s when i write my password , i don't have any txt file
    in fact , when i use this line
    Code:
    sudo modprobe b43
    the wireless connection is found again !!!

  6. #6
    Join Date
    Oct 2012
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    Re: Broadcom 4312 Not find Wireless connection - Ubuntu 12.10

    THIS IS THE SOLUTION ::


    Code:
    Code:
    sudo apt-get remove bcmwl-kernel-source
    If the system requires a reboot do not, it can wait a few minutes until we have finished. Warning - in some cases rebooting now can remove the wired capability as well.

    Next is Code:
    Code:
    sudo apt-get install linux-firmware-nonfree
    After this has installed wait for about 2 minutes and check if there is any wireless networks available. If none show up then two more terminal commands


    Code:

    Code:
    sudo rmmod ssl  sudo modprobe b43
    and finally
    Code:
    sudo su 
     echo b43 >> /etc/modules 
     exit
    Last edited by moroccan92; October 25th, 2012 at 10:19 PM.

  7. #7
    Join Date
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    Re: Broadcom 4312 Not find Wireless connection - Ubuntu 12.10

    Glad it is now working for you

  8. #8
    Join Date
    Oct 2012
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    Re: Broadcom 4312 Not find Wireless connection - Ubuntu 12.10

    westie457
    thank you.

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