Intermittent name resolution issues and event IDs 5501 and 6524 are logged to the DNS server event log

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Article ID: 330574 - View products that this article applies to.
This article was previously published under Q330574
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SYMPTOMS

You may experience intermittent name resolution issues on a Windows 2000-based computer that is configured as a secondary Domain Name System (DNS) server. The server may resolve some records but not others. When this issue occurs, the following events are logged to the DNS event log:

Event ID: 5501
Source: DNS
Type: Warning
Description:
DNS Server encountered bad packet from IP Address. Packet processing leads beyond packet length.

Event ID: 6524
Source: DNS
Type: Error
Description:
Invalid response from master DNS server at IPAddress during attempted zone transfer of zone. Check DNSServer and ensure that it is authoritative for this zone. This can be done by viewing or updating the list of authoritative servers for the zone. When using the DNS console, select zone ZoneName Properties at server IPAddress and click the Name Servers tab. If needed, you can add or update this server in the list there. As an alternative solution, you could also modify settings in the Zone Transfer tab to allow transfer of the zone to this and other DNS servers, where DNSServer is the name of your DNS server, IPAddress is the IP address of your master DNS server, and ZoneName is the name of your DNS zone.

CAUSE

This problem may occur if the zone transfer times out because of the load on the Windows 2000 DNS server that is acting as the primary for the zone. The primary server is not correctly handling canceled zone transfer requests. Therefore, it sends multiple zone transfer messages to the same socket, and the secondary server loads an incomplete copy of the zone.

Apply the following hotfix to Windows 2000 DNS servers that are acting as standard primaries for one or more zones.

RESOLUTION

Service Pack Information

To resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack

Hotfix Information

A 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:
http://support.microsoft.com/contactus/?ws=support
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. The English version of this fix has the file attributes (or later) 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 tool in Control Panel.
   Date         Time   Version       Size     File name
   ----------------------------------------------------
   15-Nov-2002  16:26  5.0.2195.6130 325,904  Dns.exe          	

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Microsoft Windows 2000 Service Pack 4.

MORE INFORMATION

For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:
265173 The Datacenter Program and Windows 2000 Datacenter Server Product

Properties

Article ID: 330574 - Last Review: February 21, 2007 - Revision: 2.7
APPLIES TO
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Datacenter Server
Keywords: 
kbautohotfix kbhotfixserver kbqfe kbdirservices kbwin2ksp4fix kberrmsg kbbug kbfix kbwin2000presp4fix KB330574

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