This article explains how to add a Windows client after you have manually installed the agent.
Ensure that the Install Agent box is not selected before you add the client.
In the legacy user interface:
Ensure that the Establish trust box is not selected before you add the client. If the establish trust box is selected, the system will try and perform the agent push procedure as opposed to grabbing the agent that you manually installed. For further instruction on adding a client, see To add a client in the Recovery-Series and UEB Administrator's Guide.