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On my friend's Ubuntu 12.10 (Unity) laptop, there is no longer an option to connect to a wireless network. It used to work. He doesn't know what caused it to go away, but does anyone know how to get it back?

More info:

  • See the screenshots below
  • No wlan things show up when you run iwconfig
  • Laptop is HP ProBook 6550b

enter image description here Network Settings

share|improve this question
which hardware you havE? – user84277 Nov 19 '12 at 18:40
@user84277: I updated the question to include the laptop model. But I'm wondering why you believe the hardware might be relevant if the wireless used to work? – Ian Hincks Nov 19 '12 at 18:44
@IanHincks because some wireless devices need drivers that Ubuntu does not come with by default. – RolandiXor Nov 19 '12 at 20:49
@IanHincks is it broadcom ? – user84277 Nov 19 '12 at 20:52

open terminal and type what is shown below

sudo apt-get purge broadcom-sta-common broadcom-sta-source bcmwl-kernel-source

then type

sudo apt-get install b43-fwcutter firmware-b43-installer

Restart your computer after the command is completed and your wireless will start to work :D

share|improve this answer
Interesting. From where do you know, that OP has a Broadcom wireless chipset? – David Foerster Apr 22 '15 at 5:49

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