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Windows XP SP3 clients fails to connect Network under some DHCP settings

Microsoft informed that Windows XP Service Pack 3 based client computers in a network environment fail to access the network when certain Dynamic Host Configuration Protocol settings are in place. Specifically, in a network environment containing XP plus SP3, DHCP servers configured with option 43 (for Microsoft vendor-specific options).

In this scenario, some information that the DHCP server is expected to provide is unavailable. For example, Domain Name System (DNS) and Windows Internet Name Service (WINS) information is unavailable. Therefore, the Windows XP SP3-based client computers cannot access the network as expected.

This problem occurs when option 43 does not appear at the end of the option list in the DHCP packet. Because a Windows XP SP3-based client computer assumes that option 43 will always appear at the end of the option list, the client does not parse any DHCP options that appear after option 43. This behavior causes the system to drop any DHCP options that appear after option 43 in the option list.

Microsoft has released an hotfix 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. Users can access additional information related to DHCP Option Code 43 (Microsoft Vendor-Specific Options) via this link.

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.

Source:→ Softpedia

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