According to Gerd's reply in http://mail.gnome.org/archives/networkmanager-list/2011-May/msg00168.html, this issue is then a duplicate of https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/459052.
According to Gerd's reply in http:// mail.gnome. org/archives/ networkmanager- list/2011- May/msg00168. html, this issue is then a duplicate of https:/ /bugs.launchpad .net/ubuntu/ +source/ modemmanager/ +bug/459052.