So as you suggested probably data layer is not running, you have to give this answer. The Client example will try to connect to an existing data layer.
Is a ctrlX Data Layer running on your PC (in ctrlX COREvirtual) or on your network that can be reached with your settings?
What are the connection data you are using?
Are IP/usename/password/port fitting to your ctrlX CORE hosting the data layer?
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