Error Message: TCP/IP Error 52: A Duplicate Name Exists on the Network (262276)


The information in this article applies to:

  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional
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.
Modification Type:MinorLast Reviewed:1/20/2006
Keywords:kberrmsg kbprb KB262276
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