Windows Server 2016 / Windows 10 – The connection cannot proceed because authentication is not enabled

In Windows 10 / Windows Server 2016 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)” it still doesn’t change that value.

  1. Open RegEdit – Even Remote Network Registry will work
  2. Navigate to this Key:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp
  3. Change “SecurityLayer” to a “0”
  4. Reboot and done!
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