Reinstalling LL after losing wifi due to installing updates

[anon222]

Try one more thing.
Maybe you card is supported by more than one driver, and they are conflicting.
First unload all the drivers.

Code:

sudo modprobe -r b43 wl brcmsmac

Then loasd this driver:

Code:

sudo modprobe b43

Wait a few seconds  and try to make a connection. If that works you'll have to blacklist the other drivers.
If that doesn't work  unload this driver and try this one.

Code:

sudo modprobe brcmsmac

Unload, then try next driver.

Code:

sudo modprobe wl

Here is how to blacklist a driver

Code:

echo "blacklist drivername" | sudo tee -a /etc/modprobe.d/blacklist-broadcom-wireless.conf

Replace "drivername"  with the ones you don't want to use
You will have to do it twice because you need 2 lines in the /etc/modprobe.d/blacklist-broadcom-wireless.conf
One for each blacklisted driver.
Example:

Code:

echo "blacklist wl" | sudo tee -a /etc/modprobe.d/blacklist-broadcom-wireless.conf

Code:

echo "blacklist brcmsmac" | sudo tee -a /etc/modprobe.d/blacklist-broadcom-wireless.conf

Update the initramfs after any changes to the blacklist files:

Code:

sudo update-initramfs -u

Reboot:

Code:

sudo reboot