Error message when you try to access a Windows XP-based network computer: "You might not have permission to use this network resource"

When you try to access a Windows XP-based network computer, you receive an error message that resembles the following:Note In this error message, xxxxx is the IP address or the computer name of the Windows XP-based computer.

You may experience this issue when you use the IP address or the computer name to access a shared folder that is stored on the Windows XP-based computer. You may also experience this issue when you use My Network Places to access a shared folder in this situation.

This issue can occur if the Windows XP-based computer to which you are trying to connect is configured to restrict access over anonymous connections.

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: To resolve this issue, set the value of the restrictanonymous registry entry to 0. To do this, follow these steps:

1. Click Start, click Run, type regedit, and then click OK.
2. Locate and then double-click the following registry subkey:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
3. On the right side, double-click restrictanonymous.
4. Make sure that the value in the Value data box is set to 0, and then click OK.
5. Close Registry Editor.
6. Restart the computer.

Note There may be other reasons that you receive this error. For more information, please see the "Similar problems and solutions" section.

If you still have problems with this error message, you might want to ask someone for help or contact support. For information about how to contact support, visit the following Microsoft Web site:

For more information about similar problems and solutions, click the following article numbers to view the articles in the Microsoft Knowledge Base:

For information about how to use and maintain the network, visit the following Microsoft Web site:

If these Microsoft Knowledge Base articles do not help you resolve the problem, or if you experience symptoms that differ from those that this article describes, please search the Microsoft Knowledge Base for more information. To search the Microsoft Knowledge Base, visit the following Microsoft Web site: Then, type the text of the error message that you receive, or type a description of the problem in the Search Support (KB) field.

For more information about the restrictanonymous registry entry, click the following article number to view the article in the Microsoft Knowledge Base: