Hi,
I think that you should check the connectivity to your Virtual DataPort server by running the ping script located in the `<DENODO_HOME>/bin/` directory.
An example of how to use the ‘ping’ command in a network diagnostic context: `ping -t 30000 -v //<Host_Name>:<Port_Number>`
When connecting to a remote server, certain configurations are required to enable remote connectivity. I suggest referring to the [Remote Connectivity Configuration](https://community.denodo.com/kb/en/view/document/Remote%20connectivity%20configuration) knowledge base article to ensure all necessary changes have been made. You could also try replacing the hostname with the IP address of the Virtual DataPort server to verify if the connection between the client and server is established.
For more information on checking the health of a connection, please refer to [How to Check If a Virtual DataPort Server](https://community.denodo.com/docs/html/browse/8.0/en/vdp/administration/cluster_architectures_server_backup/how_to_check_if_a_virtual_dataport_server_is_alive/how_to_check_if_a_virtual_dataport_server_is_alive#using-the-ping-script) user manual.
Hope this helps!