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Are you using Load balance on these machines or do they carry dual NICs?
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Are you using Load balance on these machines or do they carry dual NICs?

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The dc certainly does and is teamed the machies that are causing the issues are just single nics! 
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The dc certainly does and is teamed the machies that are causing the issues are just single nics!

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The load balance feature is not configured correctly on your server. Try disconnecting one NIC on the server and see if the problem persist. <br />
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My experiences with this error is because of Load Balancing. &nbsp;
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The load balance feature is not configured correctly on your server. Try disconnecting one NIC on the server and see if the problem persist.

My experiences with this error is because of Load Balancing.  

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I have a network where one machine (ws3) &nbsp;is displaying &quot;&nbsp;A duplicate name has been detected omn the tcp network&quot; and I cannot find any duplicate names for the offending machime. using nbtstat -n.<br />
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Now interestingly the ip address the error points to is the master browser server (se1) and I am getting entries in the eventlog that state the Machine (ws3) in is trying to force an election.<br />
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Could the duplicate name be master browser?<br />
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Furthermore this was happening yesterday with another PC &nbsp;(ws2) at the time I tried a rebbot of the offending machine (ws2) this cleared it off that machine , but at the same time started on this machine (ws3)
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I have a network where one machine (ws3)  is displaying " A duplicate name has been detected omn the tcp network" and I cannot find any duplicate names for the offending machime. using nbtstat -n.

Now interestingly the ip address the error points to is the master browser server (se1) and I am getting entries in the eventlog that state the Machine (ws3) in is trying to force an election.

Could the duplicate name be master browser?

Furthermore this was happening yesterday with another PC  (ws2) at the time I tried a rebbot of the offending machine (ws2) this cleared it off that machine , but at the same time started on this machine (ws3)

Duplicate names on TCP and master browser

A server is a computer program or a machine that waits for requests from other machines or software (clients) and responds to them. This architecture is called the client–server model. The clients may run on the same computer or may connect to the server over a network. The purpose of a server is to share data or hardware and software resources among clients. Typical computing servers are database servers, file servers, mail servers, print servers, web servers, game servers, and application servers.

Server Software

Transmission Control Protocol/Internet Protocol (TCP/IP) is the set of networking protocols that define end-to-end connectivity specifying how data should be packeted, addressed, transmitted, routed and received at the destination. This functionality is organized into four abstraction layers which are used to sort all related protocols according to the scope of networking involved.

TCP/IP

The Windows operating systems have distinct methodologies for designing and implementing networks, and have specific systems to accomplish various networking processes, such as Exchange for email, Sharepoint for shared files and programs, and IIS for delivery of web pages. Microsoft also produces server technologies for networked database use, security and virtualization.