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I have recently set up ubuntu 12.04 on my laptop using the Wubi installer. I am having a very difficult time setting up a wireless internet connection. I am currently set up with an ethernet connection which I have used to download all new updates and to activate the Broadcom STA wireless driver.

I have tried several things in the terminal based on other people's posts:

~$ rfkill list
0: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: yes

~$ rfkill unblock all

It doesn't change anything. I also tried rebooting and connecting to the internet on my Windows Vista OS, and it worked, so I know that the connection should not be hard blocked. I have also tried installing b43 firmware (lp/phy version) that is supposed to work with my chip (BCM4312). It seems to have no effect.

Then I tried:
~$ iwconfig
lo no wireless extensions.

eth1 IEEE 802.11 Access Point: Not-Associated
Link Quality:5 Signal level:0 Noise level:0
Rx invalid nwid:0 invalid crypt:0 invalid misc:0

eth0 no wireless extensions.

This is my first time trying to work with ubuntu, so I would appreciate any help. Thanks.

Also sorry this is poorly formatted. I'm having troubles with that too.

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Welcome to Ask Ubuntu! Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. – Eliah Kagan Jul 6 '12 at 20:18

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