network manager icon disappeared

[G.]

sudo service network-manager stop
sudo nautilus  (when this process failed I remembered to do gksudo
nautilus the next time)

Went to etc/NetworkManager and opened  NetworkManager.conf.
Change the managed value to true

Saved file and then


sudo service network-manager start

This did not restore the icon.

I tried several times.

I appreciate any advice.

thanks

garyk