For full functionality of this site it is necessary to enable JavaScript.

How to fix an authentication error has occurred the function requested is not supported error in Windows (Windows 10)

When does this remote desktop authentication error occur? How to fix it?

This error appears when your computer can't connect to the other computer remotely, via Remote Desktop Connection tool.

The most common reasons behind this error are:

  • Unstable Internet connection;
  • Firewall and antivirus settings;
  • Corrupt system files.

Check out the solutions below, in order to fix this error and connect to the other computer. We listed them based on hours spent in research and expert opinion.

Select specifications which apply:
  1. Update Windows to the latest version available

    0
    (1)
    0
    (0)
    More infos
    User profile image
    Please loginto comment
  2. Power off the computer and power it back on

    0
    (0)
    0
    (0)
    More infos
    User profile image
    Please loginto comment
  3. Make sure that the Internet connection is stable on both ends

    0
    (0)
    0
    (0)
    More infos
    User profile image
    Please loginto comment
    Like Solutionbay?
    Also check out our other projects :)
    See all projects
  4. Double−check and revisit the antivirus and firewall settings

    0
    (0)
    0
    (0)
    More infos
    User profile image
    Please loginto comment
  5. Clean up system files (and temp) via Disk Cleanup

    0
    (0)
    0
    (0)
    More infos
    User profile image
    Please loginto comment
  6. Restart the router and/or modem

    0
    (0)
    0
    (0)
    More infos
    User profile image
    Please loginto comment
  7. Modify the Encryption Oracle Remediation policy

    0
    (0)
    0
    (0)
    More infos
    User profile image
    Please loginto comment
  8. Modify the AllowEncryptionOracle value in the Registry Editor (regedit)

    0
    (0)
    0
    (0)
    More infos
    User profile image
    Please loginto comment
    Like Solutionbay?
    Also check out our other projects :)
    See all projects

Did you find a solution?
Yes No