Microsoft KB Archive/938248

= Windows Vista-based client computers do not use the node type that you specify for name resolution on the DHCP server =

Article ID: 938248

Article Last Modified on 11/2/2007

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APPLIES TO


 * Windows Vista Home Basic
 * Windows Vista Home Premium
 * Windows Vista Ultimate
 * Windows Vista Business
 * Windows Vista Enterprise
 * Windows Vista Home Basic 64-bit Edition
 * Windows Vista Home Premium 64-bit Edition
 * Windows Vista Ultimate 64-bit Edition
 * Windows Vista Business 64-bit Edition
 * Windows Vista Enterprise 64-bit Edition

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SYMPTOMS
You use a Dynamic Host Configuration Protocol (DHCP) server to assign TCP/IP configurations to client computers. You set the WINS/NBT Node Type scope option to a specific node type. However, one or more Windows Vista-based client computers do not use the node type that you specify for name resolution.

For example, you set the WINS/NBT Node Type scope option to P-node (0x2) to configure client computers to use P-node name resolution. However, some Windows Vista-based client computers do not use P-node name resolution. Instead, if these computers cannot resolve the host name by using a NetBIOS name server, they broadcast requests. This behavior causes unexpected traffic in the network environment.

Note In the P-node configuration, client computers should not broadcast requests even if the computers cannot resolve the host name by using a NetBIOS name server.



CAUSE
This problem occurs if the DHCP Client service on a Windows Vista-based client computer does not have permission to write the following registry subkey:

This registry subkey controls the client node type. If a computer cannot write this registry subkey, the computer uses a default configuration that is based on the following principles:
 * If no NetBIOS name server is configured for the client computer, the computer uses B-node.
 * If one or more NetBIOS name servers are configured for the client computer, the computer uses H-node.



RESOLUTION
After you apply this hotfix, the DHCP Client service has permission to write the registry subkey.

Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
No prerequisites are required.

Restart requirement
You do not have to restart the computer after you apply this hotfix. However, you can obtain new TCP/IP configurations from the DHCP server by restarting the computer. Or, you can type the following commands to obtain the new configurations. Press ENTER after each command.

ipconfig /release

ipconfig /renew

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Vista, 64-bit versions


STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



WORKAROUND
To work around this problem, manually set the node type in the client computer's registry. To do this, follow these steps:  Click Start, type regedit in the Start Search box, and then press ENTER. Locate and then click the following registry subkey:

 On the Edit menu, point to New, and then click DWORD Value. Type NodeType, and then press ENTER. Right-click NodeType, and then click Modify. In the Value data box, type the desired value, and then click OK.

Note To use P-node name resolution, set this value to 2.</li> Exit Registry Editor.</li></ol>

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MORE INFORMATION
For more information about name resolution in NetBIOS over TCP/IP, click the following article number to view the article in the Microsoft Knowledge Base:

119493 NetBIOS over TCP/IP name resolution and WINS

For more information about DHCP, visit the following Microsoft TechNet Web site:

http://technet.microsoft.com/en-us/library/bb727003.aspx

For more information about the terms that are used to describe software updates, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional query words: wins nbt options

Keywords: kbbug kbfix kbqfe kbpubtypekc kbexpertiseinter kbhotfixserver kbwinvistapostrtmfix KB938248

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