I don't think there is any way to protect against this -- if the file system gets full and you try to change settings, there will just be no place to write the change to.
** Changed in: network-manager-applet (Ubuntu) Status: Confirmed => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/493144 Title: had disk full, network-manager lost its settings -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs