Forum / NoMachine for Linux / Cannot connect to NoMachine 4 from Windows client installed on Linux Server / Reply To: Cannot connect to NoMachine 4 from Wndows client Installed on Linux Server
NX client 3.5.0 uses SSH protocol, which is not supported by NoMachine free.
You can upgrade your client to version 4 and connect by NX protocol.
The NoMachine Enterprise Client is available for download here:
Anyway, there is also the possibility to tunnel the NX protocol into a SSH connection: