I'm experiencing the exact same issue and I've attached a log file from "/var/log/syslog".
Unticking the option "Available to all users" in NetworkManager Applet stops the prompt from appearing. ** Attachment added: "syslog" http://launchpadlibrarian.net/26941410/syslog -- Mobile Broadband Connection Assistant appears again, although connection has been configured as system-connection https://bugs.launchpad.net/bugs/355184 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs