OPCUA32: Communication with a specific OPC UA server using username / password for authentication, does not work

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• OPCUA32: OPC UA Client driver does not connect with username / password anymore if the server does not provide a certificate (e.g. as a nano embedded server)

  Description The attempt to connect to an OPC UA Server with username and password fails when connecting to a server which does not provide a certificate. The error message reads: "Can not validate URI because proper endpoint has no certificate". But ...