I can report the same issue in Linux Mint 18, where both the packages mentioned by Steve MacDougall are in place:
[ root ] dpkg -l wpasupplicant network-manager-gnome gz-Latitude-E7240:~ Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-===========================-==================-==================-============================================================ ii network-manager-gnome 1.2.0-0ubuntu0.16. amd64 network management framework (GNOME frontend) ii wpasupplicant 2.4-0ubuntu6 amd64 client support for WPA and WPA2 (IEEE 802.11i) This was not a problem in Linux Mint 17.3, where network-manager-gnome was in version 0.9.8.8-0ubuntu4.1-mint1, and wpasupplicant doesn't seem to be part of the default release. Was able to implement a workaround by forcing a downgrade of network-manager-gnome: $ sudo su - # service network-manager stop # dpkg --force-all -i network-manager-gnome_0.9.8.8-0ubuntu4.1-mint1_amd64.deb # service network-manager start it works for me! :) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1573720 Title: Unencrypted private keys are insecure error reported even when key is encrypted To manage notifications about this bug go to: https://bugs.launchpad.net/network-manager/+bug/1573720/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs