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Duplicate name on network

Posted on 2009-07-15
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Last Modified: 2013-11-25
Hello all,

I am working on a clients machine that just started this morning telling me that a Duplicate named computer is on the network. The client is running SBS2k3 and xp pro on the client machine. I have already check multiple things and tried multiple things to fix the problem. I first verified that there of course no duplicate computers on the network through active directory and with nbstat -n, when I dod the nbstat it shows no connections. They are running a wireless connection and I have disabled the LAN connection and the 1394 connection, so the wireless card is the only connection. I have verified in that there are no duplicate IP addresses through DCHP, the only duplicate entry I can find is in the WINS server. There are two entries one for workstationa and one for file server, but there are 10 other computers that show this so I doubt that is the problem.
 I have also tried using a static IP that is not in the DCHP scope. Finally I deleted the DHCP entry on the server and then rebooted the client computer, and still says there is a duplicate name on the network. Recently there has only been one computer added to the network but it has a very different name, also I verfied that the hostname is correct for the computer and not a old host name. Any one have ideas?

P.S. - It only shows up on the log in screen once and that is it.
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Question by:aando
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Expert Comment

by:ngailfus
ID: 24861220
Does the computer have two network connections such as one wireless and one wired?  I used to get a message like that if I had plugged into the network and had my wireless on.  The reason was the wireless was on a different subnet but the two subnets could see each other.  
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by:aando
ID: 24861358
No the other networks connections are disabled.
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Expert Comment

by:dexIT
ID: 24861498
Could it be that another workstation has the same sysid as the user having problems?
Was his machine loaded with an image?
If so, have you tried using SysPrep?
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Author Comment

by:aando
ID: 24861950
His machine was loaded with just a straight XP Pro disc, no imaging. I know it can't be user related becuase he can log on the other machines just fine. Also when I log in as administrator I still get the error.
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by:dexIT
dexIT earned 200 total points
ID: 24879005
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aando earned 0 total points
ID: 24898490
We figured out the problem, there was a conflict with a IP address and a old computer in the WINS server. After we tombstoned the old WINS entry and deleted the DHCP entry the error stoped occuring.
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