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Retired WINS server reference keeps coming back even though it is not in current DHCP server options

We migrated a customer to a new domain a while back, but left their old domain controllers online for quite a while just to make sure no issues came up.  After shutting them off, we did have name resolution issues which seem to have been resolved.  What I can't get rid of, however, is the reference to the old WINS server on Windows XP DHCP clients.  I can release/renew and get rid of it, but after a while, it seems to show back up.

What is causing this to show back up, despite it not being an option in the DHCP scope of the Windows 2008 R2 domain controller?  Is there a way to clean all references to the old server from the network, or do I need to just manually disable WINS on each XP NIC?
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MnemonixTech
Asked:
MnemonixTech
2 Solutions
 
Nagendra Pratap SinghCommented:
Are these Xp clients using the same DHCP you are checking?

There may be another DHCP on the LAN.

check ipconfig /all.

DHCP server shows in that
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MnemonixTechAuthor Commented:
Yes, that's the odd part.  They show the correct DHCP server each time.  I ran a tool to check for rogue DHCP servers and it only found the legitimate server.
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footechCommented:
Any chance you have a script being applied via Group Policy that is setting WINS via netsh command?
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Nagendra Pratap SinghCommented:
In this case, trying with a fresh XP machine can tell if it is the policy.
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Leon FesterIT Project Change ManagerCommented:
You can try resetting the TCP/IP stack on the affected workstations as sometime the old NIC settings are "remembered".

See instructions to reset your TCP/IP protocol.
http://support.microsoft.com/kb/299357

Have you checked NIC settings the workstation itself?
You may find that the WINS settings are added to the properties of TCP/IP.
These settings will still be used even if DHCP is enabled on the NIC.
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compdigit44Commented:
Are you sure the IP address for your WINS server are not statically set on your client NIC setting or in the LMHost file
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