AD installation process is done. The ip address is shown and you can connect to the web interface of UCS. Univention wants a license file! The community edition is free to use but it is on your desicion to have a subscription license agreement with univention because the support is worth to pay for.

I provide you some screenshots how to add a client ( Max Mustermann ). The connection of the SMB server as client is shown in the section File Server

Univention client config