Ah security, the balance between not allowing access at all and allowing too much access.
In Windows 10 Microsoft changed RDP’s defaults. They modified the default for “SecurityLayer” from 0 to 2. Even if you go into the user interface and disable: “Allow connections only from computers running Remote Desktop with Network Level Authentication (recommended)” Still doesn’t change that value to a 2.
Simple fix:
- Open RegEdit
- Navigate to this Key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp - Change “SecurityLayer” to a zero
- Reboot and done!