Hi gafonso,
I have not done any Team Render over the internet. So, I can point out only the tutorials or other resources:
https://www.cineversity.com/vidplaylist/cinema_4d_team_render/cinema_4d_team_render_part_07
As well as part 8.
If it is the server interface that needs to be used and/or the Preferences> Path, while keeping this tip below in mind, is not based on my practical experience. The tip below might help, as mentioned in the Help Content:
The external computer has access to the Assets. Define the database path in the Preferences menu (Path menu).
https://help.maxon.net/r23/en-us/index.html#html/53457.html
In case you need first-hand information and experience, please check with the support.
https://support.maxon.net/index.php
My understanding is that the relative path information is one key setting for the project file. Where your content can be found or was pointed to in the server interface is the other.
My best wishes