How to: Fix the Device not Managed Error in Ubuntu

created by BasicSysAdmin

Tags: Ubuntu, Ubuntu 14.04

Jul 09, 2016

In this guide, I will be showing you how you can fix the 'device not managed' error when trying to customise a network adapter.

The first thing you will need to do is to open the terminal. Once in the terminal, type in

sudo nano /etc/NetworkManager/NetworkManager.conf

Once you are in the config file, you will see the following

You will need to change the bit where you see


You config file should now look like this

You can now save and exit the config file by pressing Ctrl + O followed by Enter and then Ctrl + x to exit.

You can then apply these changes by typing
sudo service network-manager restart