apt-get -y install network-manager
apt-get -y install network-manager-gnome
apt-get -y remove modemmanager

cat > /etc/network/interfaces << EOF
# NetworkManager: minimum interfaces
# François July,16
#
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d

auto lo
iface lo inet loopback
EOF

systemctl stop dhcpcd
systemctl disable dhcpcd
systemctl disable wpa_supplicant
pkill -9 wpa_supplicant

sed -ie '/^managed=/s/=.*/=true/g' /etc/NetworkManager/NetworkManager.conf
sed -i '/^\[main\]/a monitor-connection-files=true' /etc/NetworkManager/NetworkManager.conf

systemctl enable NetworkManager
reboot