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I have a Sony PCG-61315L. I go to network and it won't let me enable wireless no matter how many times I click to turn it on. The switch on the computer to turn on wifi is definitely switched on.

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  • As far as I know some Laptops use a special key combination to switch wireless facility from the keyboard. Have u switched that on ?
    – Ravi Raj
    May 31, 2012 at 7:33
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    Which version of Ubuntu? Have you tried the Wiki help page?
    – david6
    May 31, 2012 at 7:40
  • I once had the propblem that wifi only worked when i booted the computer with the wifi hardware switch off. Then i had to turn the hardware switch on when the system was up. Did you try that? May 31, 2012 at 8:37
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    Include the output of lspci, iwconfig and rfkill list.
    – Braiam
    Sep 20, 2014 at 18:29

1 Answer 1

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If the wireless is stuck as if disabled by hardware (it happens in some laptops when you use the wireless button a lot) and you cannot physically enable it, try in Terminal:

sudo rfkill unblock wifi
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