I also had this issue with precise (coming from lucid) and needed to do a manual migration. For my workaround see http://askubuntu.com/questions/129547/gnome-network-manager-config-file-migration
I also had this issue with precise (coming from lucid) and needed to do a manual migration. For my workaround see http:// askubuntu. com/questions/ 129547/ gnome-network- manager- config- file-migration