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Receiving 2505 and 4321 errors on workstations and servers when they are rebooted or unlocked.

Posted on 2016-10-10
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Last Modified: 2016-11-12
ENVIRONMENT:
Windows 2012R2 - FSMO
Windows 2012R2 - DC
Sonicwall NSA - Router.  2x Site to Site VPN's (that have been reviewed 2x by sonicwall and are not the issue)
Additional 2012 & 2012R2
All Windows 7 workstations.

ERRORS
2505 error
Log: System
Type: Error
Event: 2505
Alert Time: 2016-10-07 20:06:17Z
Event Time: 12:04:25 AM 8-Oct-2016 UTC
Source: Server
Category: None
Username: N/A
Computer: ServerZ
Description: The server could not bind to the transport \Device\NetBT_Tcpip_{F6778C24-0813-4835-88F1-03D8962CCACF} because another computer on the network has the same name.  The server could not start.
 
Event 4321
Log: System
Type: Error
Event: 4321
Alert Time: 2016-10-07 20:06:17Z
Event Time: 12:04:00 AM 8-Oct-2016 UTC
Source: NetBT
Category: None
Username: N/A
Computer: ServerZ
Description: The name "ServerZ           :0" could not be registered on the interface with IP address 172.16.0.14. The computer with the IP address 172.16.0.1 did not allow the name to be claimed by this computer.
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Question by:howmad2
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5 Comments
 
LVL 94

Expert Comment

by:John Hurst
ID: 41837273
Run nbtstat -n and look for a duplicate name.
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Author Comment

by:howmad2
ID: 41837393
Ran "NBTSTAT -n"  on a machine the errors results are "no named cache"
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LVL 94

Accepted Solution

by:
John Hurst earned 500 total points (awarded by participants)
ID: 41837436
-n  is for local names. Did you run it locally?

-a is for remote names. Try that.

Run nbtstat /? to see all the options.

It would seem that you have a duplicate name somewhere.
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LVL 94

Expert Comment

by:John Hurst
ID: 41857635
Did you follow my most recent post?
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LVL 94

Expert Comment

by:John Hurst
ID: 41884535
Steps to detect duplicate names provided
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