I started my server and when trying to connect with the desktop client I got an error. See my screenshots to view the error.
Are you running the client on the same machine as you have Tryton-server running? If so, it can be your firewall who is blocking requests. Check your logs.
If you are running Tryton-server on a different machine (or VM), change your trytond-simoc.conf and change the line
listen = localhost:8001 to listen = 0.0.0.0:8001 Also again, check if port 8001 is open in your firewall.