[ubuntu] can't turn on wireless card

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http://ubuntuforums.org – I am having issues trying to turn on my wireless card. I have tried to use the ifconfig command to do so, but it gave me an error. Code: @ubuntu-laptop:~$ sudo ifconfig wlan0 up SIOCSIFFLAGS: Unknown error 132 This is what I get when I type iwconfig Code: @ubuntu-laptop:~$ iwconfig lo        no wireless extensions. eth0      no wireless extensions. wlan0    IEEE 802.11abgn  ESSID:off/any            Mode:Managed  Access Point: Not-Associated  Tx-Power=off          &nbs (HowTos)