Requires network-level identity verification

Last updated: 2020-04-25 11:57:14

    This document describes how to solve the issue of network level authentication when connecting to a Windows instance using Remote Desktop.

    Issue

    Windows Remote Desktop fails to connect to your Windows instance with the error message The remote computer requires Network Level Authentication, which your computer does not support. For assistance, contact your system administrator or technical support.

    Troubleshooting

    In the following steps, we use Windows Server 2016 as an example.

    Logging in to the CVM using VNC

    1. Log in to the CVM Console.
    2. On the instance management page, find the desired CVM instance. Click Log In, as shown in the following figure:
      CVM index page
    3. In the Log in to Windows instance window that appears, select Alternative login methods (VNC). Click Log In Now to log in to the CVM.
    4. In the login window that appears, select Send Remote Command in the top-left corner. Click Ctrl-Alt-Delete to enter the system login interface as shown below:

    Modifying the Windows registry

    1. In the operating system interface, click . Enter regedit and press Enter to open the Registry Editor.
    2. Using navigation tree on the left-side, navigate to Computer > HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > Lsa. In the right-side pane, select Security Packages, as shown in the following figure:
      Security Packages
    3. Double click Security Packages to open the Edit Multi-String dialog box.
    4. In the Edit Multi-String dialog box, add tspkg under Value Data and click OK, as shown in the following figure.
    5. Using navigation tree on the left-side, navigate to Computer > HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > SecurityProviders. In the right-side pane, select SecurityProviders, as shown in the following figure:
    6. Double-click SecurityProviders to open the Edit Multi-String dialog box.
    7. Append ,credssp.dll to the end of the Value Data field in the Edit Multi-String dialog box. Click OK as shown in the following figure:
    8. Close the registry editor and restart the instance. You can now log in remotely.

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