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Yesterday i updated mu ubuntu 12.04 dual booted with windows on HP Envy-4 Ultrabook 1002tx. After the updates, the wifi stopped working suddenly, even though it was working perfectly fine before. It still is working in windows.

Here is the description of the ubuntu version


Following is the chip id

08:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)

I followed the following links, but none worked.

How to Install a Broadcom Wireless Driver (answer by KiLLeRfriend and Luis Alvarado)


After Ubuntu Upgrade, cannot connect to wifi(wireless)

Please Help.

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Could you please provide the output with dpkg -l |grep wpa –  karan Jun 17 '13 at 6:31
@karan ii wpasupplicant 0.7.3-6ubuntu2.1 client support for WPA and WPA2 (IEEE 802.11i) –  Pallavi Gupta Jun 17 '13 at 8:01
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