As user:
$ nm-tool
NetworkManager Tool
get_nm_state(): didn't get a reply from NetworkManager.
NetworkManager appears not to be running (could not get its state).
As root:
# nm-tool
NetworkManager Tool
State: disconnected
print_devices(): didn't get a reply from NetworkManager.
There are no available network devices.
$ ps aux|grep Network
root 11689 0.0 0.1 3972 1832 ? Ss 10:51 0:00 /usr/sbin/NetworkManager --pid-file /var/run/NetworkManager/NetworkManager.pid
root 11696 0.0 0.1 2900 1076 ? Ss 10:51 0:00 /usr/sbin/NetworkManagerDispatcher --pid-file /var/run/NetworkManager/NetworkManagerDispatcher.pid
benq 13498 0.0 0.0 3076 688 pts/0 S+ 11:30 0:00 grep Network