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I am using Dell Vostro 3400 PC. Previously I was running Ubuntu 11.10 version . Recenty I have upgraded it to 12.04 version. The sad part is wireless is disabled now and I am unable to connect internet.

How to enable wireless?

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    Please execute followings in terminal and post output of lspci and rfkill list
    – Web-E
    May 11, 2012 at 7:00
  • Have you connected (temporarily) by Ethernet, run updates and searched for additional drivers? If so, then we need more details (as above).
    – david6
    May 11, 2012 at 8:00

1 Answer 1

Reset to default
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Actually I followed 2 step to enable wireless in my PC

  • Step 1 : Removed the bcmwl-kernel-source package 

    sudo apt-get remove bcmwl-kernel-source

  • Step 2 : Installed the firmware-b43-installer package.

    sudo apt-get install firmware-b43-installer

And then rebooted my PC .

Finally got my work done. :)

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  • Thanx @Jorge...
    – Sam
    May 11, 2012 at 19:47

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