The article https://docs.microsoft.com/en-us/windows/client-management/connect-to-remote-aadj-pc shows how to connect to an AAD joined PC from another AAD joined PC. I have followed these instructions. The LENOVO Thinkcenter Edge machines are both brand new installs of Windows 10 updated to 10.0.19042.928 and registered to AAD with the same user. For testing, both PC are on the same network and have 10.6.2.xx IP's. Wireshark shows that the PC's can connect to each other. Remote Credential Guard has not been enabled. The standard "can't connect" error shows. Remote users now connected to Azure AD cannot work remotely. Can anyone advise?