$ sudo service network-manager stop $ sudo rm /var/lib/NetworkManager/NetworkManager.state $ sudo service network-manager start $ sudo vim /etc/NetworkManager/nm-system-settings.conf
Modift false to true.
$ sudo service network-manager restart
$ sudo service network-manager stop $ sudo rm /var/lib/NetworkManager/NetworkManager.state $ sudo service network-manager start $ sudo vim /etc/NetworkManager/nm-system-settings.conf
Modift false to true.
$ sudo service network-manager restart