How Did I Solve Wifi Problem On Ubuntu 16.04 For Lenovo Z580

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All problems started after I update my Ubuntu 16.04 LTS and wifi driver has gone.  I spent so many times to solve this problem. Actually there is no problem. There is  driver more than one.

After I update Ubuntu I realized, update that I did, installs an other driver of broadcam. That new wifi driver installation caused the wifi problem.

As the result, all you need this command :

sudo apt purge bcmwl-kernel-source

That command will remove broadcam installation which had been installed by update.

Lastly...

Reboot your system :

sudo reboot

That's it. Now, Everything could be okay. This method solved to my problem. I hope, it will also be useful for you.

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