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Q214430: Multihomed SNA NT Client Can’t Find Local Server over IP

Article: Q214430
Product(s): Microsoft SNA Server
Version(s): WINDOWS:4.0,4.0SP1
Operating System(s): 
Keyword(s): kbsna400sp3fea kbFEA kbsna400sp3fix
Last Modified: 08-MAY-2002

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The information in this article applies to:

- Microsoft SNA Server, versions 4.0, 4.0SP1 
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SYMPTOMS
========

If an SNA Server Windows NT client is configured to use the TCP/IP transport to
communicate with a "local" SNA Server (that is, if the SNA client "locates"
servers in an SNA Server subdomain), the SnaBase service may fail to start, and
displays the following error message:

  SNA Server - ERROR # 1004
  SnaBase didn't find any SNA Servers in your domain

This problem can occur if the Windows NT computer is multihomed (that is, is
configured with more than one IP address), where the first client IP address is
not on the same IP network as an SNA Server.

NOTE: The above error can also occur if the client is separated from the server
by an IP router. To solve that problem, configure the SNA Windows NT client as
"remote" (that is, "Client locates server by name").

CAUSE
=====

When configured to connect to a local SNA Server over TCP/IP, the SNA Windows NT
client sends out its first client IP address. If the server or servers are
located on a different IP network, the client fails to receive the server's
response.

RESOLUTION
==========

To resolve this problem, obtain the latest service pack for SNA Server version
4.0. For additional information, please see the following article in the
Microsoft Knowledge Base:

  Q215838 How to Obtain the Latest SNA Server Version 4.0 Service Pack


WORKAROUND
==========

If Windows NT 4.0 Service Pack 4 is being used, the following articles may help
work around the problem by forcing TCP/IP to return a specific IP address to SNA
Server:

  Q171320 How to Change the IP Address List Order Returned

  Q164023 Fix for Gethostbyname() IP Address Order on Local Multihomed Mac

STATUS
======

Microsoft has confirmed this to be a problem in Microsoft SNA Server. This
problem was first corrected in SNA Server version 4.0 Service Pack 3.


Additional query words:

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Keywords          : kbsna400sp3fea kbFEA kbsna400sp3fix 
Technology        : kbAudDeveloper kbSNAServSearch kbSNAServ400
Version           : WINDOWS:4.0,4.0SP1
Issue type        : kbbug
Solution Type     : kbfix

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