If you see the "Connection Selection" dialog and receive a notification that ETS cannot use any of the configured interfaces, this usually happens due to network issues or unavailability of the selected connection. The automatic selection works best if any used KNX/IP Interface is explicitly included in the project. This article will guide you through resolving this issue and getting your ETS project back on track.
Understanding the Problem
The "Connection Selection Dialog" appears when ETS encounters issues with the network configuration or when the configured connection is unavailable. Some common reasons for this issue include:
-
Network Configuration Problems: ETS may not establish an IP connection due to incorrect network settings or firewall restrictions.
-
Connection Already in Use: The configured connection might already be in use by another process or application.
-
Interface Compatibility: The selected interface may not be compatible with your current setup.
Troubleshooting Steps
Here are steps to resolve the "Connection Selection Dialog" issue in ETS:
1. Check Network Configuration:
- Verify that your network settings are correct. Ensure that your device is connected to the network and can access the required resources.
- Disable any firewalls or security settings that may be blocking the ETS connection.
2. Close Unnecessary Applications:
- Make sure that no other application is using the selected connection. Close any applications that might be using the same network interface.
3. Restart ETS:
- Sometimes, a simple restart of ETS can resolve the issue. Close ETS and reopen it to see if the problem persists.
4. Select an Available Interface:
- In the "Connection Selection Dialog," ETS displays a list of available interfaces. Choose an alternative interface from the list that is working correctly and can establish a connection.
5. Interface Compatibility:
- Verify that the interface you are trying to use is compatible with your ETS version and the project requirements. Consult the interface's documentation for any specific compatibility information.
6. Update or Reinstall Interfaces:
- If you suspect that your interfaces are outdated or not functioning properly, check for updates or consider reinstalling them. Moreover, see also KNX/USB interface not recognized and KNX/IP interface not discovered.
7. Network Support:
- If you continue to experience problems, contact your IT department or network administrator to ensure your network configuration is correct.
Preventing Future Issues
To prevent similar issues in the future:
- Regularly update your network configuration and security settings.
- Avoid using interfaces that are known to have compatibility issues with ETS or your network setup.
- Close applications that use the same interface before starting ETS (e.g. visualizations or other ETS instances that might use the same interface)
If you have followed these steps and the issue still persists, consider seeking assistance from the ETS support team or the manufacturer of your interface. They can provide specific guidance based on your ETS version and hardware configuration.