Comment 26 for bug 1294899

#25 workaround, while necessary was not sufficient for me.

Another problem I have (maybe others too?) is clicking the NetworkManager icon shows that eth0 "device is not managed". The default Ethernet>Wired Connection 1 present on 13.10 and before is missing. Trying to add it back in didn't work either, but finally setting "managed=true" in /etc/NetworkManger/NetworkManager.conf and `service restart network-manager` got it working to start already configured VPN profiles.

As for getting around the other bug of getting the vpn profiles configured, you can follow post #25, or just configure them by hand, or do what I did and revert network-manager to its ubuntu 13.10 version. You will have to download each deb from launchpad/ubuntu package site, or you could add the saucy repo and force install the correct versions.

dpgk -i --force-downgrade libnm-gtk0_0.9.8.0-1ubuntu5_amd64.deb network-manager_0.9.8.0-0ubuntu22_amd64.deb network-manager-openvpn_0.9.8.2-1ubuntu2_amd64.deb modemmanager_0.6.0.0.really-0ubuntu7_amd64.deb network-manager-gnome_0.9.8.0-1ubuntu5_amd64.deb network-manager-openvpn-gnome_0.9.8.2-1ubuntu2_amd64.deb

service restart network-manager

And don't forget to lock these package versions in synaptic or they will update/break on your next upgrade.