Troubleshooting OPC UA HDA Server Issues
Unable to Connect to the Server
Issue: When you attempt to connect to the OPC UA HDA server from an OPC UA HDA client, a message appears, stating that you cannot connect to the server.
Diagnostics:
- Ensure that user authentication for the OPC UA HDA server is based on either user credentials or certificates. Anonymous authentication is not supported.
- If you have selected authentication based on user credentials, ensure that you have entered the correct credentials of the Historian server.