Let XP SP3 Remote Desktop support Network Level authentication

Failure: The remote computer requires network Level authentication and your computer does not support this authentication, please contact your system administrator or technician for assistance.

Symptom symptoms: This failure occurs when you use the Windows XP Remote Desktop Connection tool to connect to Remote Desktop and Terminal Services for Windows vistas or Windows Server 2008.

Fault generation Environment: Remote Desktop Connection tool version 6.0, or Windows XP profressional SP1, SP2, SP3

Workaround:

1, please upgrade the "Remote Desktop Connection" tool the latest version 6.1.

2, please upgrade the XP to the latest SP3 patch package.

3. Run "regedit" to open Registry Editor, enter "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa", double-click "Security Packages" in the right column, open Edit Multiple Strings dialog box to add the "tspkg" character at the cursor of the list box.

4, then navigate to the "Hkey_local_machine\system\currentcontrolset\control\securityproviders", double-click the right-hand "SecurityProviders" string, open the " Edit String dialog box, add "Credssp.dll" to the end of the value, notice that there is an English space after the comma.

5, quit the registry program, restart the computer after troubleshooting.

Reboot the system and then run MSTSC to see that information has been displayed to support network Level authentication.

Knowledge Point: What is Network Level authentication.

Network Level Authentication (NLA) is a new authentication method that completes user authentication before you establish all Remote Desktop connections and displays the logon screen. This is the safest authentication method that helps protect a remote computer from hacking or malware attacks.

The advantages of NLA are:

Initially, fewer remote computer resources are required. Before authenticating a user, the remote computer uses limited resources instead of starting all Remote Desktop connections, as in previous versions. It helps provide better security by reducing the risk of denial of service attacks. (Denial of service attack attempts to restrict or prevent access to the Internet.) Use remote computer authentication to help prevent users from connecting to remote computers that are set up for malicious purposes.