Hi Chris, 

Sorry I answered to Jean and I forgot to put the List in copy.
So As agreed : 

NXSERVER - Version 3.5.0-8 - LESS

NXNODE - Version 3.5.0-6 - LESN

As I  told Jean: 
I went to try a connection to  an other server with FreeNX server installed and I've got the same behavior. 
I try the connection with  the old NX Cleint on windows  I 've no problem.
 I noted OpenNXclient create in C:\Documents and Setting\users\.nx a tmp directory with 2 empty files as  runlog and sshlog.
On the server with freeNX I found an empty directory /var/log/nx. 
I don't have any log I'm afraid
However I prefered to focus on the freenx server

2013/12/4 <chris@ccburton.com>

Michel Dubois <dubois.michel@gmail.com> wrote on 04/12/2013 08:55:22:

> Hi,

> I tried OpenNX client for windows OS without good result. I entered
> the address of the server, the login and the password and when I
> click on connect the windows is gone without connection.

Any error message from the client ???

Any sign of a connection being made in the nx server logs ???

Are you sure the NX server is working correctly ???

    are you sure there is connectivity between client and server ? (try tracert)
    are you being stopped by windows security ??
    which version of windows are you using ???

etc etc

>  I use No  Machine licensed server, but the new version of the
> client doesn't give me security satisfaction.

To which client do you refer here ??

What is the security issue you have ??

> Thanks for your help.
> --
> -----------------------------------------------------------
> Michel Dubois

Michel Dubois