When connecting to a remote desktop using Remote Desktop Protocol (RDP) you may see this error message on your computer that says "An authentication error has occurred. This could be due to the Oracle CredSSP encryption fix". This error statement appears due to incorrect policy settings or corrupted registry issues. If you have a problem similar to this, follow these solutions to fix it.
Fix- Change Group Policy Settings-
Adjust the Group Policy settings on your computer to fix the problem.
1. Press Tasto Windows + R together to open the file run window on your computer.
2. In the running window, type "gpedit.msc". Now click on "ok“To open the Local Group Policy Editor file.
3. Once the Local Group Policy Editor window opens, on the left hand side, go here-
User settings > Administrative models > System> Delegation of credentials
4. On the right side, scroll down and then double click on him "Oracle encryption fix“To change it.
6. Now, set the setting to “Qualified”To enable the policy.
7. Likewise, configure Security Level the "Vulnerable".
8. Finally, click on "To apply"And then in"ok“To save the changes on your computer.
Near Group Policy Editor window.
Try connecting to the RDP connection again. You will be able to do it.
Fix-2 Change registry settings
If changing the policy settings didn't work, changing the registry settings on the computer might fix the problem.
1. Click Search box and then type "regedit".
2. Then, you need to press the button "Log in'on the keyboard to access the record.
3. Now, expand the folders like this:
4. Hence, the right mouse button in a space on the right side and then click "New>"And then click"Key".
5. Give the new key the name "CredSSP".
6. Now, on the left side, the right mouse button in "CredSSP"And then click"New>"And then click"Key".
7. Give the new subkey the name "Parameters".
8. Similarly, on the right side, the right mouse button in a space and then click "New> " and then click "Valore DWORD (32 bit)".
9. Name the new DWORD value such as "AllowEncryptionOracle".
10. Then double click in "AllowEncryptionOracle”Value of dword to change it.
11. In the Edit DWORD (32 bit) value window set "Basic" to "Decimal".
12. Now, set the 'Value data' for "2".
13. Click on 'ok“To save the changes on your computer.
Close Registry Editor window.
Restart your computer.
After restarting your computer, try connecting to the RDP connection again.
Your problem is solved.