On your Server 2019, open the registry editor and navigate to
|
1 |
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Terminal Server Client |
Create a new d-word (32-bit) value and name it UseURCP with decimal value of 0.
Source:
https://itcalls.net/windows-10-version-1809-black-screen-when-connecting-rdp-to-server-2019
