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Duplicate Name on the Network?

Windows 2003 Server Error Log Message: "Error Log Message: A duplicate name has been detected on the TCP network...."

Not sure how to interpret the nbtstat -n command:

C:\>nbtstat -n

Local Area Connection 2:
Node IpAddress: [192.168.11.82] Scope Id: []

                NetBIOS Local Name Table

       Name               Type         Status
    ---------------------------------------------
    LTW0           <00>  UNIQUE      Registered
    LTW1           <00>  GROUP       Registered
    LTW1           <1C>  GROUP       Registered
    LTW0           <20>  UNIQUE      Registered
    LTW1           <1E>  GROUP       Registered

Local Area Connection:
Node IpAddress: [192.168.11.8] Scope Id: []

                NetBIOS Local Name Table

       Name               Type         Status
    ---------------------------------------------
    LTW0           <00>  UNIQUE      Registered
    LTW1           <00>  GROUP       Registered
    LTW1           <1C>  GROUP       Registered
    LTW0           <20>  UNIQUE      Registered
    LTW1           <1E>  GROUP       Registered

C:\>
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LTWadmin
Asked:
LTWadmin
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2 Solutions
 
mcsweenSr. Network AdministratorCommented:
That error means you have 2 computers with the same netbios name on the network.  Shut down the one giving errors and ping it's name from another box to see if you are getting replies.  If not try and ping it's IP address to see if it replies.  Once u get a reply connect to it's C$ share and look which user profiles are setup on it.  This should help you to find the duplicate name.
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LTWadminAuthor Commented:
Thanks.  Could it also possibly be the same IP address?  The machine reporting the error has one card on a fixed IP - the other on DHCP...
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Jay_Jay70Commented:
Hi LTWadmin,

yes that can give you issues if you are on the same subnet - thats a no go

Cheers!
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LTWadminAuthor Commented:
What is? Having dual NICs on the same subnet?
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Jay_Jay70Commented:
with the same computer name hell yes
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LTWadminAuthor Commented:
I mean dual NICs on one machine - one name - one subnet.  I kinda figured having two machines on the same network with the same name isn't right (hence the original question.  We don't have subnets by the way - we're on a "flat network" - all IP's are 192.168.11.x.  Please clarify.
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Jay_Jay70Commented:
yes   you effectively have what the network thinks is 2 machines with the same name   dual NIC's are more for using different subnets
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mcsweenSr. Network AdministratorCommented:
You can team the NICs for load balancing if it's a large bandwidth server, otherwise just disable one of the NICs and ull be fine.

If we aren't talking about dual NICs in 1 server then make sure no two computers on the same network have the same IP Address or NetBios name.
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