Consider the following scenario. You use a Microsoft Windows Server 2003-based DHCP server to assign TCP/IP configurations to client computers. Then, you restart the DHCP Server service. In this scenario, some DHCP options disappear on the DHCP server.
This problem occurs if the following conditions are true:”¢ Some user classes are created on the DHCP server.
“¢ The user classes are referenced in the Scope Options properties or in the Server Options properties.
“¢ One or more user classes are removed from the DHCP server.
“¢ The references are not removed before the user classes are removed.
When this problem occurs, client computers do not have the correct TCP/IP configurations. Therefore, the client computers cannot communicate with other computers on the network.
This problem occurs because the DHCP Server service does not correctly handle orphaned references. In this situation, some valid DHCP options are missing during the DHCP Server service restart.
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows Server 2003 service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.