The managed property has nothing to do with enabling VPNs. We are not going to change this value, since the behavior you are seeing is expected.
Another workaround may be to remove the interface configuration from /etc/network/interfaces; NM is most likely able to handle it just fine. ** Changed in: network-manager (Ubuntu) Status: New => Won't Fix -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/974122 Title: Should be Managed=true by default Status in “network-manager” package in Ubuntu: Won't Fix Bug description: After upgrading from 11.10 to 12.04 the submenu's to be able to connect to PPTP VPNs dissapeared. This shouldn't happen. This was resoved by editing /etc/NetworkManager/NetworkManager.conf and changing "managed=false" to "managed=true". I had previously edited my /etc/network/interfaces file but all modifications were commented out to allow Network Manager to manage the connections. This worked correctly before the upgrade. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: network-manager 0.9.4.0-0ubuntu2 ProcVersionSignature: Ubuntu 3.2.0-21.34-generic 3.2.13 Uname: Linux 3.2.0-21-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.0-0ubuntu4 Architecture: amd64 CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Date: Thu Apr 5 11:21:35 2012 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110426) NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true RfKill: SourcePackage: network-manager UpgradeStatus: Upgraded to precise on 2012-04-04 (0 days ago) mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2012-04-05T11:13:59.325348 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/974122/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp