Ensure no other device on the local network shares the exact IP address of your programming PC or the HDL IP Gateway.
You can download the software directly from several official HDL distribution and support sites: HDL-KNX Support : Access the direct HDL Buspro Setup Tool 2 Download (approx. 13.2 MB). HDL Automation Main Site
If you encounter difficulties during setup or connection, review these standard resolution steps. Potential Cause Resolution Network adapter mismatch