Put Ubuntu NetworkManager back on notification bar

Question

I am running the GNOME 3 desktop environment on Ubuntu 11.04. I accidentally clicked the "Don't show again" option when a notification from NetworkManager came up, but would now like to have it back. How can I restore it?

Answer 1

Restore a missing network manager.
Run application [ Alt + F2 or click on empty space on panel scroll to 'run application' add to panel ].
1. Press the combination Alt+F2. This opens the Run Application window.
2. Type in the Run Application text box: nm-applet --sm-disable
3. Click Run.

Read this Article for deeper information.
http://practicalswitchtoubuntu.blogspot.com/2009/02/restore-missing-network-manager-applet.html
Open terminal and type ‘gconf-editor’ then press ‘enter’, this will open the ‘Configuration Editor’ after that go to 1). /apps/nm-applets click on it , clicking on the right side will tell you what each file does.
2). /schemas/apps/nm-applets
Your NetManager could be set to 'hide' I do not know which 'box to tick to restore'.
'disable-disconnected-notifications' ?? Hope this works