Remote Desktop Connection An authentication error has occurred. The function requested is not supported Remote computer : xxx This could be due to CredSSP Encryption Oracle Remediation For more information, see https://go.microsoft.com/fwlink/?linkid=866660
On Windows 10, click Start and type CMD.
Right click Command Prompt and select Run as Administrator
Paste the following command into the command run window and hit enter to execute.
REG ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters\ /v AllowEncryptionOracle /t REG_DWORD /d 2
If prompted to overwrite Value AllowEncryptionOracle exists, overwrite(Yes/No)? - Type Y to proceed
Restart your computer and reconnect to the server
The issue occurres after the target server is patched with May 8, 2018—KB4103725 (Monthly Rollup)
