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Wireless stops immediately after I log in Ubuntu 12.04 LTS on Lenovo IdeaPad Z710. I need a little help. Thank you in advance. nm-tool gives me State: disconnected

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Your wireless might be disabled, run the following commands in the terminal (ctrl+alt+t):

  1. iwconfig this will output the name of your wireless card, it's usually wlan0
  2. Assuming the name was wlan0, run ifconfig wlan0 up, if the name is not wlan0 the replace it for the correct one.

I hope this helps, good luck.

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  • After I run iwconfig it shows me this : eth0 no wireless extensions. and lo no wireless extensions.
    – Ovi
    Jan 27, 2014 at 20:05
  • Try doing the following: 1 - sudo apt-get install linux-headers-generic 2 - sudo apt-get install --reinstall bcmwl-kernel-source 3 - sudo modprobe wl 4 - iwconfig After the last command close the terminal and log off and back in.
    – Minnen
    Jan 27, 2014 at 20:34
  • I plugged the ethernet cable, did all these steps, plugged off the cable but it still appears that Disconnected error.. Still not working.
    – Ovi
    Jan 27, 2014 at 21:21
  • Let's take a step back and actually identify your wireless device first: lspci -nn | grep 0280
    – chili555
    Jan 27, 2014 at 23:06
  • Network controller : Intel Corporation Wireless 7260 (Rev 73)
    – Ovi
    Jan 28, 2014 at 12:48

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