Windows Essentials 2022 Remote Access for nonadmins

Hello everyone,

This topic is already asked several times but I did not find any working answer.

I am administrating a Windows Essentials 2022 server. One user need to work on the Remote Desktop temporary. I should create a seperate virtual terminal server on the Essentials server but currently I do not have time for that and it costs some money. So I want to take advantage of the grace periode that this user can work by RDP. It is the only existing server in this network and the network has only two staff and me ;-)

The wellknow issue is that only administrator users can access this domain controller. I do not want to make the user an domain administrator.

I have added the user by GPO to the people which are allowed to connect and I have added the user manually by system settings -> remote. After the second step at leaste RDP is opening but then I am getting a message that the user is still not allowed.

Is there any option?