RTDE Connection only works halfway

Hi,

Currently I am trying to connect to my UR15 modell by using both Dashboard (:29999) and the RTDE (:30004) interface using Python (3.11). Connecting to dashboard works just fine and I also managed to connect with rtde receive. However rtde connect does not work. The error message shows, there is a sort of timeout/end of file and the robot does not appear to respond.

Weirdly enough my Firewall detected TCP/IP communication via :30003 which for me is odd and I cannot explain.

How can I also connect with rtde controll?
Does there have to be some kind of urscript-rtde “acceptance” script running on the UR?
What else could I be missing?

You can setup a Windows PC for the RTDE connection.

Here is a guide: https://www.toolchanger.eu/download/doc/HowToRTDE-v1.pdf

/Henning