DNS error when you add a Windows XP-based computer to a Small Business Server 2000 domain

When you try to add a Microsoft Windows XP Professional computer to a Microsoft Small Business Server 2000 domain, you may receive one of the following error messages:When you click Details, you may see entries that are similar to one of the following:

The error may occur if any one of the following conditions is true:

• Windows XP is not configured to use a local DNS server.
• NetBIOS over TCP (NetBT) is disabled on Windows XP, and you are using the NetBT domain name when you try to add the computer.
• A third-party firewall program that is installed on the Windows XP-based computer is blocking DNS queries.
• You did not follow the recommended steps to set up Windows XP on a Small Business Server 2000 network.

Warning This workaround may make your computer or your network more vulnerable to attack by malicious users or by malicious software such as viruses. We do not recommend this workaround but are providing this information so that you can implement this workaround at your own discretion. Use this workaround at your own risk.

Note An antivirus program is designed to help protect your computer from viruses. You must not download or open files from sources that you do not trust, visit Web sites that you do not trust, or open e-mail attachments when your antivirus program is disabled.

For additional information about computer viruses, click the following article number to view the article in the Microsoft Knowledge Base:

Use a local DNS server

On Small Business Server 2000 networks, Microsoft recommends that you use the local IP address of the DNS server on all client computers. To configure Windows XP to use Small Business Server 2000 for the DNS server, follow these steps:

1. On Windows XP, click Start, and then click Control Panel.
2. If Control Panel is in Category View, click Switch to Classic View.
3. Double-click Network Connections.
4. Right-click the icon for the local area connection, and then click Properties.
5. Click Internet Protocol (TCP/IP), and then click Properties.
6. Under Use the following DNS server addresses, type the Small Business Server 2000 internal IP address, and then click OK two times.

Use the DNS domain name

After you make sure that Windows XP is using a local DNS server, use the full DNS domain name when you try to add the computer to the domain. To determine the DNS domain name, follow these steps:

1. On Small Business Server 2000, right-click My Computer, and then click Properties.
2. Click the Network Identification tab, and then check the domain name that is listed.

Remove third-party firewall software

1. On the Windows XP-based computer, click Start, and then click Control Panel.
2. If Control Panel is in Category View, click Switch to Classic View.
3. Double-click Add or Remove Programs.
4. Locate any Internet security or firewall software in the list of installed programs.
5. If you find an Internet security or firewall program in the list, click the program, and then click Remove.

For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

Follow recommendations for setting up Windows XP

When you set up Windows XP on a Small Business Server 2000 network, Microsoft recommends that you add the computer to the domain before you install any client programs. In particular, do not install Microsoft Firewall Client. If you already installed Firewall Client, remove the program before you add the computer to the domain.

To remove Firewall Client, follow these steps:

1. On Windows XP, click Start, and then click Control Panel.
2. If Control Panel is in Category View, click Switch to Classic View.
3. Double-click Add or Remove Programs.
4. Click Microsoft Firewall Client, and then click Remove.

If you ran the Set Up Computer Wizard on Small Business Server 2000 to install Firewall Client on the client computers, the program may not show up in the list of installed programs on the client computers. In this case, you must install Firewall Client manually on the client computer, and then remove the program.

To install Firewall Client manually, follow these steps:

1. On Windows XP, click Start, and then click Run.
2. Type \\ServerName\mspclnt where ServerName is the name of the Small Business Server 2000 computer, and then click OK.
3. When you are prompted, type a user name and password for a valid user account in the domain.
4. Double-click Setup.exe to start the installation of Firewall Client.
5. When the installation is complete, follow the steps in the "Follow recommendations for setting up Windows XP" section to remove Firewall Client.

For additional information about how to set up Windows XP on a Small Business Server 2000 network, click the following article number to view the article in the Microsoft Knowledge Base: