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I know there are other answers similar to this, I have tried those but am stuck. In Windows my wifi LED was on, in Ubuntu it is not. Function keys are not turning it on. There is no reference to WiFi from network manager, only:

  • Ethernet network disconnected (greyed out)
  • VPN connections
  • enable networking (ticked)
  • Connection information (greyed out)
  • Edit connections

I have tried using rfkill from terminal, but nothing happens, it just goes back to command line. I have also tried sudo rfkill, with the same result.

Should wifi work when running from the Live CD? Would like it to so I can see full extent of system.

I'd appreciate any help, but please remember I'm new. Sorry if this is too similar to other questions.

result of lspci -nnk | grep -i net is

05:00.0 Network controller [0280]: Broadcom Corporation BCM4311 802.11b/g WLAN [14e4:4311] (rev 01)
08:00.0 Ethernet controller [0200]: Broadcom Corporation BCM 4401-B0 100 Base-TX [14e4:170c] (rev 02)

The "net" is red is both lines.

Ubuntu version is 13.04 (boot from live system) and I am on a Dell Inspiron 1501.

gertvdijk
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Katie Davis
  • 35

3 Answers3

3

I believe the proprietary driver is incorrect for 14e4:4311. Please get a temporary wired ethernet connection and do:

sudo apt-get remove --purge bcmwl-kernel-source
sudo apt-get install linux-firmware-nonfree

Reboot and let us hear your report.

chili555
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 Network controller [0280]: Broadcom Corporation BCM4311 802.11b/g WLAN [14e4:4311] (rev 01)

Shows you've got a Broadcom Corporation BCM4311 Wireless LAN card in your machine. This one is only supported by some proprietary driver which you can install after installation. You'll need to use the regular wired Ethernet connection to install this using the regular "Hardware drivers" application in Ubuntu.

Similar questions to look into:

and look for more using BCM4311 in the search.

Community
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gertvdijk
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0

Here is a link to the b43.zip file from my Dropbox. https://dl.dropboxusercontent.com/u/58267392/b43.zip Download it to a USB drive. Drag and drop it to the desktop of the Ubuntu machine. Right-click it and select 'Extract Here.' Now open a terminal and remove, in case it was erroneously installed, the proprietary driver:

sudo apt-get remove --purge bcmwl-kernel-source
sudo modprobe -r wl

Now we'll move the firmware to the location the driver expects to find it.

sudo mkdir /lib/firmware/b43
sudo cp Desktop/b43/* /lib/firmware/b43

Now we'll unload the driver and reload it so it sees and uses the new firmware:

sudo modprobe -r b43 && sudo modprobe b43

Now your wireless should be working correctly.

chili555
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