Requires network-level identity verification

Last updated: 2019-11-14 10:59:08

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This document describes how to handle alarm prompts like network level authentication when connecting to a Windows instance.

Fault Symptoms

When using Windows remote desktop, an error occurs, asking for network level authentication.

Troubleshooting

The following operations take Windows Server 2016 as an example.

Logging in to the CVM using VNC

  1. Log in to the CVM Console.
  2. In the instance management page, find the target CVM instance, and click Log in. This is shown in the following figure:
    CVM list page
  3. In the Log in to a Windows Instance window that pops up, select Ohter login methods (VNC), and click Log in to log in to the CVM.
  4. In the login window that pops up, select Send remote command in the top left corner, and click Ctrl-Alt-Delete to enter the system login interface as shown below:

Modifying the Registry

  1. In the operating system interface, click , enter regedit, and press Enter to open the Registry Editor.
  2. In the left-side navigation tree, expand the following directories: Computer > HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > Lsa, and in the right-side window, find Security Packages. This is 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 in Value data, and click OK. This is shown in the following figure.
  5. In the left-side navigation tree, expand the following directories: Computer > HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > SecurityProviders, and in the right-side window, find SecurityProviders. This is shown in the following figure:
  6. Double click SecurityProviders to open the Edit Multi-String dialog box.
  7. Add , credssp.dll to the end of Value data field in the Edit Multi-String dialog box. Click OK. This is shown in the following figure:
  8. Close the registry editor and restart the instance. You can now connect remotely.