On the broker I see TerminalServices-SessionBroker-Client 1307
The Remote Desktop Connection mediation client successfully redirected user Domain\Login to endpoint Dattum-rdp-17.domain.com.
Log : https://drive.google.com/file/d/1OEjYUGYka5fM9ZdKzADSBNNys6hikKDG/view?usp=sharing