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Click here to check out all the new features in the latest version of Operations Hub. Let Operations Hub help you centralize and digitize your industrial applications.

Important: You do not have the latest version of Operations Hub! You are missing out on the newest capabilities and enhanced security. For information on all the latest features, see the Operations Hub product page. For more information on upgrades, contact your GE Digital sales agent or e-mail GE Digital Sales Support. For the most up-to-date documentation, go here.

Error Messages

A list of connection errors, their cause, and action to be taken.

These are some of the errors you may encounter when testing a data source connection:


Error Message	Description
Test Connection Failed - Server not reachable.	Cause: The hostname or the IP address of the server is incorrect. Action: Enter the correct hostname or the IP address.
Test Connection Failed - Security mode or policy not supported.	Cause: The selected security policy is not supported by the server. Action: Select a security policy supported by the server.
Test Connection Failed - Authentication Failed.	Cause: The user name or password to login to the sever is incorrect. Action: Enter the correct user name or password.
Test Connection Failed - Server not trusted.	Cause: The server certificate is not trusted by the Operations Hub client. Action: To trust, access the untrusted server certificate, then select Trust. The server certificate gets copied to the Operations Hub trusted folder.
Test Connection Failed - Server doesn't trust this client.	Cause: Operations Hub client certificate is not trusted by the server. Action: Log in to the server, and add the Operations Hub client certificate to their trusted list.
Test Connection Failed - Certificate Uri is Invalid.	Cause: The Application URI does not match with the URI in the certificate. Action: Re-issue the security certificate.
Test Connection Failed - Connection limit on OPC UA server exceeded.	Cause: You have exceeded the license limitation of clients on this server. Action: Get a license issued for this client.
Test Connection Failed to connect the opcua endpoint.	Cause: The endpoint url could be incorrect. Action: Enter the correct endpoint URL in this format: opc.tcp://hostname:port.
Test Connection Failed - Fields are not filled properly.	Cause: The information to establish a connection is either missing, or invalid. Action: Enter the correct information.