Se compare l'errore:
An authentication error has occurred.
The function requested is not supported.

Remote computer: xxx.xxx.xxx.xxx
This could be due to CredSSP encryption oracle remediation.
dal computer client eseguire:
REG ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters\ /v AllowEncryptionOracle /t REG_DWORD /d 2

Vedi anche: CredSSP updates for CVE-2018-0886