Microsoft KB Archive/244978

= Event ID 1003 and DHCP Client Denied with Two DHCP Servers on the Network =

Article ID: 244978

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Workstation 4.0 Developer Edition

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This article was previously published under Q244978



SYMPTOMS
When you have two Dynamic Host Configuration Protocol (DHCP) servers connected to the network, and the DHCP Server Service of the unauthorized server is running, it may intercept a 'Discover' broadcast from a client computer and generate the following error message:

The DHCP client could not obtain an IP address.

Also, Error ID 1003 may appear in the Event Log with the following description:

DHCP failed to obtain a lease for the card with Network Address MAC address of client. Access is denied.



CAUSE
This issue can occur if the network interface card (NIC) of the unauthorized DHCP server is not intended to service the appropriate clients and prevents the client from obtaining an Internet Protocol (IP) address. Because of this, the DHCP Client Service does not start on the client computer.



RESOLUTION
To resolve this issue, stop the DHCP Server service on the unauthorized server:


 * 1) Click Start, point to Settings, click Control Panel, and then double-click Services.
 * 2) In the Service list, click Microsoft DHCP Server, and then click Stop.
 * 3) Click Close.



MORE INFORMATION
To prevent the DHCP Server Service from starting automatically:


 * 1) In the Services dialog box, click Microsoft DHCP Server.
 * 2) Click Startup.
 * 3) Click Disabled or Manual, and then click OK.
 * 4) Click Close.

Additional query words: broadcast discover request

Keywords: kbprb KB244978

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