NetBT_4319_E: A duplicate name has been detected on the TCP network

Satish Kumar Venkataraman

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Jul 9, 2003, 3:33:21 PM7/9/03

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Hi,
This is an environment that has several hundered servers. This has
DHCP servers on the network too. But all the machines are made to
boot at the same time on a particular day and a particular
application[basically a service] hangs when doing tcp/ip
communications to a server process[in the same machine].

I've found that the event log shows the msg "NetBT_4319_E: A duplicate
name has been detected on the TCP network". The application hangs are
totally random and happens around 1% of the number of machines, others
work fine, and the machines that stuck with the application problem,
those too works fine if the service is simply restarted.

Now my question here is that as soon as NETBT_4319 message is being
generated, what will be the status of the ip address for that machine
and within how long this ip conflict is resolved?

Also, can anybody tell whether the application hangs may be because of
this ip conflict? [i dont have any trace or proof except i know that
it hangs when the client is trying to communicate with the server
[both client and server are on the same machine]]

Thanks
Satish

David H. Lipman

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Jul 9, 2003, 5:19:44 PM7/9/03

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This is not a duplicate IP address error.

Two platforms on the MAN/LAN have the same computer NAME. On one of the two
platform, add an additional character to resolve the problem.

Dave

"Satish Kumar Venkataraman" <sa...@optonline.net> wrote in message
news:1ec4af85.03070...@posting.google.com...

Satish Kumar Venkataraman

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Jul 10, 2003, 11:49:20 AM7/10/03

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David, Thanks for your response.

But there is no same names that two computers have, in the network,
then why is this comming? There is no manual action taken, will this
somehow gets resolved?
[I believe there is nothing to be resolved as there is absolutely no
duplicate names on the network!]

Finally what is the consequence of this problem, i mean, impact on the
applications?

Thanks
Satish

"David H. Lipman" <DLipman~nospam~@Verizon.Net> wrote in message news:<QF%Oa.38561$U23....@nwrdny01.gnilink.net>...

David H. Lipman

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Jul 10, 2003, 5:50:37 PM7/10/03

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One problem may be if you perform a NetBIOS pop-up message to the machine name,
both machines will get the pop-up.
I haven't run across this problem so I really don't know.

Are you really, really, REALY sure there are no duplicates ?

Based upon the OS, you might want to go to the Microsoft news server at:
news.microsoft.com and find an appropriate forum and repost your query.

Dave

Don Kelloway

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Jul 12, 2003, 1:04:10 AM7/12/03

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"Satish Kumar Venkataraman" <sa...@optonline.net> wrote in message

news:1ec4af85.03071...@posting.google.com...

PMFJI, but have you read any of the following articles?

How to Diagnose Event ID 4320 or 4319
http://support.microsoft.com/default.aspx?scid=kb;en-us;120752

or

Event ID 4319: Duplicate Names on the Network
http://support.microsoft.com/default.aspx?scid=kb;en-us;242053

or

Intermittent Name Conflicts with WINS Server
http://support.microsoft.com/default.aspx?scid=kb;en-us;184832

--
Best regards,
Don Kelloway
Commodon Communications

Visit http://www.commodon.com to learn about the "Threats to Your Security
on the Internet".