You can use SAP Business One directly on your PC’s or you can access it with RDP (Remote Desktop Protocol) to your Terminal Server. If you want to access SAP Business One, and suddenly after some windows update, you can’t access it, you’ll have an error on Remote Desktop Connection screen. It shows “An authentication error has occurred. The function requested is not supported.” And “This could be due to CredSSP encryption oracle remediation.”
It was an error caused by there are windows updates on your server while on your PC client is not updated or vice versa.
Try with this solution, open Command Prompt, right click and choose Run As Administrator.
REG ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters\ /v AllowEncryptionOracle /t REG_DWORD /d 2
Hit enter, then wait until it shows “The operation completed successfully.”
Please retry to access your SAP with Remote Desktop Connection to your terminal server, it should be done without any error. 😊