I'm on Ubunut 16.04.3 LTS with kernel 4.4.0-97-generic. When I make a ssh user@my.server.com it's ok, I reach my server and connect immediatly. But when I use X2GoClient then I have a message : "Connection refused". I put the path of my private key on the field path for the sessions. I don't understand. Where did I miss a step?