"A Phonebook Entry Cannot be Added: The Authentication Service Is Unknown" Error Message When You Configure a Windows 2000 Remote Access Server from Windows Server 2003 (816898)


The information in this article applies to:

  • Microsoft Windows Server 2003, 64-Bit Datacenter Edition
  • Microsoft Windows Server 2003, 64-Bit Enterprise Edition
  • Microsoft Windows Server 2003, Datacenter Edition
  • Microsoft Windows Server 2003, Enterprise Edition
  • Microsoft Windows Server 2003, Standard Edition
  • Microsoft Windows Small Business Server 2003, Standard Edition
  • Microsoft Windows Small Business Server 2003, Premium Edition

SYMPTOMS

When you try to configure a Microsoft Windows 2000 Routing and Remote Access server from the Windows Server 2003 Routing and Remote Access utility, you may receive the following error message:
A phonebook entry cannot be added:

The Authentication service is unknown.

CAUSE

This issue occurs if you try to configure a demand-dial network interface on the Windows 2000 Routing and Remote Access server.

WORKAROUND

To work around this issue, configure a Remote Desktop Connection to the Windows 2000 server and use the Routing and Remote Access utility on that server to configure the demand-dial network connection.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

MORE INFORMATION

When you try to administer the Windows 2000 server by using the Windows Server 2003 Routing and Remote Access utility, remote access service remote procedure calls (RPCs) are used. Because of new security features introduced in Windows Server 2003, these remote access RPC calls are not compatible with Windows 2000 RPCs.

The new Windows Server 2003 remote access service client RPC call contains additional authentication information that is not recognized by Windows 2000 Server. Therefore, the RPC call causes an exception that is translated into an error status, generating the error message described in the "Symptoms" section of this article.
Modification Type:MajorLast Reviewed:3/1/2004
Keywords:kbpending kbBug kberrmsg KB816898
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