Just to further clarify, setup is below all using Free edition:
Windows Host is running Windows 10 Pro Build 1703 with NoMachine 5.2.21
Windows Client is Both Windows 10 Home (not sure of build at the moment) and Windows 7 running NoMachine 5.2.21
Linux Client’s areĀ Ubuntu 16.04.2 with NoMachine 5.2.21 running xfce4