What you need to do is edit /etc/xdg/autostart/nm-applet.desktop with your favorite text editor as admin.
Go down to the Exec line and change the entry from nm-applet to dbus-launch nm-applet.
Go to the NoDisplay=true line and change to NoDisplay=false.
Save the file and reboot!
What you need to do is edit /etc/xdg/ autostart/ nm-applet. desktop with your favorite text editor as admin.
Go down to the Exec line and change the entry from nm-applet to dbus-launch nm-applet.
Go to the NoDisplay=true line and change to NoDisplay=false.
Save the file and reboot!
from http:// askubuntu. com/questions/ 449658/ networkmanager- tray-nm- applet- is-gone- after-upgrade- to-14-04- trusty