Thank you for the response. I actually did exactly that. I installed Vectorworks 2021 in the client machine using SerieG Serial number. When I open the application, the checkbox for "Automatically find servers" is check, clicked login and I got an error " Can't find server on the network". But, when I manually entered the server name in Primary server textbox with default port 5053, it connects.
By the way, I did this install manually with GUI, not silent install. So I manually entered in all the required fields.
If you have other ideas on how to fix this issue, I would appreciate it.
Thank you again,