[Marcin]

Let's try to set up the UR driver manually:

1. Take the file attached and update the IP and port in the first 2 lines (IP of the robot and the communication port you specify in RoboDK).
   
2. You can load the attached file on the robot and run it (you'll need to setup a new program to run a script file as shown here).
   
3. You may see errors in the log (let me know if this is the case).
   

If you don't see any errors it means something is blocking the connection (firewall, antivirus or Windows user account control doesn't let you setup a server connection).

I tried to run this program but this error popped up.

   

Albert, maybe you have any other ideas?