Able to connect but unable to share cockpit

Hi everyone, my friend and i are trying to share 737 ngx cockpit, using Desk Pilot. We did some test like pinging true Hamashi it works. when we open Desk pilot (pilot side) server starts, we able to enable cockpit and fsuipc is ok. On the host side we see true Hamashi that client is joining session.

When we try to connect from client side we press the button and 2 secondes later it disconnect. Also by default we have an IP adress by default 192.168.1.101 that we cannot modify ( is it normal i dont know ?) in the key window it written  TESTPASS on the server as well as on the client side. Anybody having any ideas how to get into that cockpit sharing. I feel that we are near but yet not too many explanations about that specific situation.

Would appreciate any help...Thanks