So you’ve noticed the Network-Manager applet is missing from your notification area in Ubuntu and you can’t connect to your wifi or cellular network. Now what?
Here’s a few tips to get it back, based on Ubuntu 10.10:
1) Make sure Network-Manager applet is installed
Open Applications > Ubuntu Software Center
Type ‘network’ in the search box and hit enter.
Locate ‘Network Manager’ in the application list and make sure it has a green check mark next to it.
2) Make sure Network-Manager-Applet is set to run on start-up
Open System > Preferences > Startup Applications and make sure the box next to Network Manager is checked.
The next two tips are slightly modified tips provided from UbuntuGeek:
3) Make sure Network-Manager is managing your connections
Open the terminal and type:
gksu gedit /etc/NetworkManager/nm-system-settings.conf
change the “
managed=false” to “
managed=true” and then save it.
then in the terminal type:
and then reboot.
4) Re-add the notification area to your bar:
right click panel>add to panel>Notification Area
Open a terminal and type:
gksu gedit /etc/network/interfaces
then check that the file has only this 2 lines:
auto lo iface lo inet loopback
Delete all the others then reboot.
6) You may also want to try restoring the panels to default.