When the Enteprise Terminal Server is restarted or the host machine is rebooted, value of the DisplayMonitorIcon key in node.cfg is restored to 1 even if it was previously disabled (DisplayMonitorIcon 0).

This value is then propagated to the nodes and overrides the setting of the node, for example when the node is rebooted or the server on the node is restarted.

As a temporary workaround, set DisplayMonitorIcon 0 in node.cfg on the Enterprise Terminal Server and run this command:

sudo /etc/NX/nxserver --configupdate

Do that after each restart of the Enterprise Terminal Server (nxserver --restart , nxserver --shutdown/startup) and reboot of the machine.