If you are getting the error “an authentication error has occurred the function requested is not supported” on windows 7 when trying to connect to a remote computer you can fix it by doing the following:
Changing the the Group Policy on the local client workstation to use the vulnerable setting
Run: gpedit.msc
Go to Computer Configuration -> Administrative Templates -> System -> Credentials Delegation -> Encryption Oracle Remediation
Open Encryption Oracle Remediation > choose Enable > change protection level Vulnerable & Apply
