Microsoft KB Archive/262276

= Error Message: TCP/IP Error 52: A Duplicate Name Exists on the Network =

Article ID: 262276

Article Last Modified on 3/1/2007

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition

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This article was previously published under Q262276



SYMPTOMS
When you connect to an Internet Service Provider (ISP), or a Remote Access Server (RAS) with a dial-up connection or a dial-on-demand routing connection, you receive the following error message:

TCP/IP CP reported error 52: A duplicate name exists on the network

NOTE: When this error message is displayed, the connection is terminated.



CAUSE
The static IP address assigned to the RAS connection is the same as the IP address assigned to a network interface card (NIC) in the same computer.



RESOLUTION
Do not use the same static IP address for the NIC and RAS connection on the same computer.

Keywords: kberrmsg kbprb KB262276

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