Same here, this seems to be a regression bug - didnt happen to me on 14.10 When i start NM-Applet from the terminal i get the following message at the time of the crash
nm-applet:ERROR:applet-device-broadband.c:636:get_icon: assertion failed: (info) Aborted before that i only saw ** (nm-connection-editor:5944): WARNING **: Unsupported connection type 'generic' ** (nm-connection-editor:5944): WARNING **: Unsupported connection type 'generic' ** (nm-connection-editor:5944): WARNING **: Unsupported connection type 'generic' (nm-applet:5932): nm-applet-WARNING **: Could not find ShellVersion property on org.gnome.Shell after 5 tries ** Furthermore the applet is still running - even the connection works benste@benste-VPCSB3C5E:~$ ps -eaf | grep nm-applet benste 7981 7963 0 11:53 pts/4 00:00:00 grep --color=auto nm-applet benste@benste-VPCSB3C5E:~$ ps -eaf | grep NetworkManager | grep -v NetworkManagerDispatcher root 829 1 0 10:18 ? 00:00:02 /usr/sbin/NetworkManager --no-daemon nobody 1343 829 0 10:18 ? 00:00:00 /usr/sbin/dnsmasq --no-resolv --keep-in-foreground --no-hosts --bind-interfaces --pid-file=/run/sendsigs.omit.d/network-manager.dnsmasq.pid --listen-address=127.0.1.1 --conf-file=/var/run/NetworkManager/dnsmasq.conf --cache-size=0 --proxy-dnssec --enable-dbus=org.freedesktop.NetworkManager.dnsmasq --conf-dir=/etc/NetworkManager/dnsmasq.d root 7243 829 0 11:35 ? 00:00:00 /usr/sbin/pppd nodetach lock nodefaultroute ipv6 , ttyUSB10 noipdefault noauth usepeerdns lcp-echo-failure 5 lcp-echo-interval 30 idle 0 ipparam /org/freedesktop/NetworkManager/PPP/4 plugin /usr/lib/pppd/2.4.6/nm-pppd-plugin.so benste 7985 7963 0 11:53 pts/4 00:00:00 grep --color=auto NetworkManager ** Bug watch added: Debian Bug tracker #783627 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=783627 ** Also affects: network-manager via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=783627 Importance: Unknown Status: Unknown -- 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/1410253 Title: nm-applet crashes upon activating mobile broadband device Status in NetworkManager: Unknown Status in network-manager package in Ubuntu: Confirmed Bug description: Selecting "activate mobile broadband" from the nm-applet-indicator reproducibly crashes nm-applet. (Indicator symbol disappears.) The mobile device is nonetheless activated. nm-applet can be restartet from the commandline. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: network-manager 0.9.8.8-0ubuntu28 ProcVersionSignature: Ubuntu 3.16.0-28.38-generic 3.16.7-ckt1 Uname: Linux 3.16.0-28-generic x86_64 ApportVersion: 2.14.7-0ubuntu8 Architecture: amd64 CurrentDesktop: Unity Date: Tue Jan 13 14:08:24 2015 EcryptfsInUse: Yes IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2013-04-12 (640 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) IpRoute: default via 10.40.33.42 dev wwan0 proto static 10.40.33.40/29 dev wwan0 proto kernel scope link src 10.40.33.44 metric 13 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true SourcePackage: network-manager UpgradeStatus: Upgraded to utopic on 2014-10-24 (81 days ago) WifiSyslog: nmcli-dev: DEVICE TYPE STATE DBUS-PATH ttyACM1 gsm connected /org/freedesktop/NetworkManager/Devices/2 wlan0 802-11-wireless disconnected /org/freedesktop/NetworkManager/Devices/1 eth0 802-3-ethernet unavailable /org/freedesktop/NetworkManager/Devices/0 nmcli-nm: RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN running 0.9.8.8 connected enabled enabled enabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/network-manager/+bug/1410253/+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