I use LXDE desktop environment ( the repositories own arch linux ) , and slim login manager to manage my network using NetworkManager and nm-applet as graph manager to start automatically selected NetworkManager to start automatically with " systemctl enable NetworkManager " , and created a *. desktop nm- applet /etc/xdg/autostart to start it normally starts , the problem occurs when I use the option terminating session, when I entered my User nm-applet no longer appears on the bar , although the process has been started on the system . The problem occurs because these packages do not remove the "/var/lib/NetworkManager/NetworkManager.state" file, hindering a new run , this was proven by removing it manually and then running nm-applet it appears . I even tried to solve this by putting a script to start with lxde in the /etc/xdg/ autostart , but does not solve , since it must be run after the full load of LXDE , which is not the case .

if the translation is bad , I'm sorry , I do not speak English and I'm using google translator .