Hello, Aurélien's solution did not work for me either, after making the necessary changes to both the interface and the nm-system-settings.conf files I got this
v...@rebuffat:~$ sudo /etc/init.d/networking restart sudo: unable to resolve host rebuffat * Reconfiguring network interfaces... WARNING: ifup -a is disabled in favour of NetworkManager. Set ifupdown:managed=false in /etc/NetworkManager/nm-system-settings.conf. [ OK ] But the funny part is that when I go back to edit the nm-system- settings.conf file, the boolean is still set to true ... v...@rebuffat:~$ cat /etc/network/interfaces auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp v...@rebuffat:~$ cat /etc/NetworkManager/nm-system-settings.conf [main] plugins=keyfile [ifupdown] managed=true The applet always shows the warning sign telling me that the device is unmanaged.... -- NetworkManager applet says "No valid active connections found!" https://bugs.launchpad.net/bugs/305606 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs