cannot execute nm-applet as a normal user
 

** (nm-applet:3839): WARNING **: Could not initialize NMClient /org/freedesktop/NetworkManager: Rejected send message, 2 matched rules; type="method_call", sender=":1.104" (uid=1000 pid=3839 comm="nm-applet ") interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply="0" destination="org.freedesktop.NetworkManager" (uid=0 pid=2023 comm="/usr/sbin/NetworkManager ")
** Message: applet now removed from the notification area
** Message: applet now embedded in the notification area
** Message: applet now removed from the notification area
^C** Message: PID 0 (we are 3839) sent signal 2, shutting down...

NetworkManager starts normally at boot time but executing nm-applet as a normal user gives this error. I thought of it as a policykit issue but I've seen nothing that could lead to this error in /usr/share/polkit/actions/org.freedesktop.NetworkManager.policy
It looks like It could be a DBus issue maybe...