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PSS ID Number: Q220831
Article last modified on 03-15-1999

winnt:4.0,4.0a

winnt


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The information in this article applies to:

- Microsoft BackOffice Small Business Server versions 4.0, 4.0a
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IMPORTANT: This article contains information about editing the registry.
Before you edit the registry, make sure you understand how to restore it if
a problem occurs. For information about how to do this, view the "Restoring
the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help
topic in Regedt32.exe.

SYMPTOMS
========

When the Small Business Server (SBS) computer connects to the Internet Service
Provider (ISP) through a dial-up connection, the following event is generated in
event log:

  Event ID: 4319
 Source: NetBT
 A duplicate name has been detected on the TCP network. The IP address of the
 node that sent the message is in the data. Use nbtstat -n in a command window
 to see which name is in the Conflict state.

After the duplicate name is detected, all NetBT operations on the server fail.
These operations include network browsing and the Manage Server Console.

CAUSE
=====

This problem is caused by the SBS server registering the computer name or domain
name with the WINS server at the ISP. The name will attempt to register with the
WINS server until the WINS server responds with the duplicate name error. The
SBS server will not function using NetBT.

RESOLUTION
==========

This problem should be corrected by removing the WINS server entries on the RAS
phonebook entry that is used to dial the ISP.

Follow these steps to remove these settings:

1. Go to Dial-Up Networking.

2. Select the Phonebook entry used to connect to the ISP.

3. Click More, and then edit the entry and modem properties.

4. On the Server tab, select TCP/IP Settings.

5. Change the primary and secondary WINS addresses to all zeros.

MORE INFORMATION
================

Some ISPs are automatically creating these entries for SBS customers and
entering the WINS addresses. These should be in the registry key listed below,
and not on the phonebook entry.

Most ISPs do not use WINS. The ISPs that support the online signup servers for
SBS do use WINS to allow the SBS customers to have dynamic IP addresses for
their dial-up connections. WINS is used by SBSETRN to register a secret name
with the ISP for mail retrieval. The dial-up connection should not register the
local computer name. SBSETRN does not need these addresses configured on the
phonebook entry. It uses the WINS servers configured in the following registry
location:

WARNING: Using Registry Editor incorrectly can cause serious problems that may
require you to reinstall your operating system. Microsoft cannot guarantee that
problems resulting from the incorrect use of Registry Editor can be solved. Use
Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And
Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete
Information in the Registry" and "Edit Registry Data" Help topics in
Regedt32.exe. Note that you should back up the registry before you edit it. If
you are running Windows NT, you should also update your Emergency Repair Disk
(ERD).

  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SmallBusiness\Internet\MS_IMS\WINS_Address

NOTE: This registry entry will only be available after completeing the online
signup process.

Additional query words: smallbiz

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Version           : winnt:4.0,4.0a
Platform          : winnt
Issue type        : kbprb
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Copyright Microsoft Corporation 1999.