Hello SimonTokyo,
Thank you for posting in Microsoft Community forum.
Windows Server 2022 Standard comes with 5 CALs, which means you do not need to purchase any additional CALs for users to access the server. However, if you want to use Remote Desktop Services (RDS) on the server, you will need to purchase RDS CALs in addition to the standard CALs. RDS CALs are required for each user or device that connects to an RDS session host.
Regarding the error message you are receiving, it seems like the Remote Desktop Licensing service is not configured correctly on your server. You can try the following steps to resolve the issue:
- Open the Remote Desktop Licensing Manager on your server.
- Right-click the server name and select Properties.
- Under the Connection Method tab, select Use the specified Remote Desktop license servers and enter the name of your license server.
- Click OK to save the changes.
If you do not have a license server set up, you can install the Remote Desktop Licensing role on another server and configure it to manage your RDS CALs.
I hope the information above is helpful.
If you have any question or concern, please feel free to let us know.
Best Regards,
Haijian Shan