Solution: the remote computer requires network-level authentication, which is not supported by your computer

 

Fault: "the remote computer requires network-level authentication, but your computer does not support this authentication. Please contact your system administrator or
Technical staff to get help"

Fault symptoms: The above fault occurs when you use Windows XP Remote Desktop Connection Tool to connect to Windows vistas or Windows Server 2008 Remote Desktop and terminal services.

Fault generation environment: Remote Desktop Connection Tool versions earlier than 6.0, or Windows XP profres1_sp1, SP2, SP3

Solution:
1. Upgrade the latest version of "Remote Desktop Connection" tool to 6.1.
2. Upgrade XP to the latest SP3 patch package.
3. Run "Regedit" to open the Registry Editor, go to "HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ LSA", double-click "security packages" on the right bar, and open the "edit multiple strings" dialog box, add the "tspkg" character to the cursor of the list box.
4. Go to "HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ securityproviders", double-click the "securityproviders" string on the right, open the "Edit string" dialog box, and add ", credssp. DLL ", note that there is a space after the comma.
5. Exit the Registry Program, restart the computer, and troubleshoot the problem.

After the system is restarted, run the mstsc command to check that the information is displayed as support for network-level authentication.

In some articles, win2008/Vista cannot access the remote desktop using an IP address, but only the machine name is used, which is incorrect. Yes.

 

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,
The logon screen is displayed. This is the safest authentication method, which helps protect remote computers against attacks by hackers or malware. Nla
Advantages:

At first, less remote computer resources were required. Before users are verified, remote computers use limited resources, instead
Start all remote desktop connections.
It helps improve security by reducing the risk of DoS attacks. (DoS attacks attempt to restrict or block access to the Internet .)
Use Remote Computer authentication to help prevent users from connecting to remote computers that are set to malicious purposes