just installed ubuntu 14.04 on Dell Latitude d620 and no wired or wireless connection. Hardware: Dell Wireless 1490 Duel Band WLAN Mini-Card. Broadcom BCM4311 802.11a/b/g [14e4:4312]. Kernel driver:wl. I tried to install Synaptic package manager(downloaded it to a USB, then connect USB to 14.04 system) I don't think I am using the package manager right, or mabe I'm not install the drivers right. Any have a clue? And please don't say to just download the package.....I've done that 20 times and it doesn't register. Thanks for any insight you can provide.


You installed a wrong driver for the wireless adapter. That probably is also the reason why Ethernet does not work as well.

Remove the wrong driver by running in terminal

sudo apt-get purge bcmwl-kernel-source

After reboot the Ethernet should work. Then connect to the internet and install firmware by

sudo apt-get install firmware-b43-installer

If Ethernet does not work for some reason, use this answer to install the firmware offline.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.