RTDE is already in use when using ur-rtde with CB3

I’m attempting to remotely control a CB3 UR3 robot using UR-RTDE and Python. However, even after disabling all internet and ProfiNet connections on the UR3, I still encounter an error indicating that RTDE is already in use. If anyone knows a solution, I would appreciate the assistance.

You may post the code how you connect to the RTDE interface. Maybe there is a bug.