- You install the DNS Server role on a computer that is running Windows Server 2008 or Windows Server 2008 R2.
- You disable IP version 6 (IPv6) on the computer.
- You configure the DNS server to use root hints to resolve external name resolution.
- The DNS Server service receives some external name resolution requests.
For example, users cannot access some websites.
Note If you collect a network trace when this issue occurs, the trace contains the following network packets:
<IP> <IP> DNS DNS:QueryId = 0x1C, QUERY (Standard query), Response - Server failure
When the DNS Server service queries the name server for an external name resolution request, the Internet DNS server returns an IP address list that contains IP version 4 (IPv4) and IPv6 addresses. However, the DNS Server service does not check whether IPv6 is disabled when the service selects an IP address to send the next DNS query. The service may select an IPv6 address when IPv6 is disabled. Therefore, the DNS Server service does not send the next DNS query, and this issue occurs.
Hotfix informationA supported hotfix is 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.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
PrerequisitesTo apply this hotfix, you must be running one of the following operating systems:
- Windows Server 2008 R2
- Windows Server 2008 R2 Service Pack 1 (SP1)
- Windows Server 2008 SP2
For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
Registry informationTo use the hotfix in this package, you do not have to make any changes to the registry.
Restart requirementYou do not have to restart the computer after you apply this hotfix.
You must stop the DNS Server service before you apply this hotfix to avoid restarting.
Hotfix replacement informationThis hotfix does not replace a previously released hotfix.
For more information about how to enable IPv6, click the following article number to view the article in the Microsoft Knowledge Base:
Article ID: 2549656 - Last Review: Jul 10, 2013 - Revision: 1