W2k pro problems on NETLOGON

Having problems with all W2k pro machine taking too long when login on the network. Server has 2 nic Private and public.
Dns configurations on the clients point to the public Nic
and Dns on the server point to the server itself.
Checked on the clients event viewer With the following msg
Dnsapi Event ID 11152
The reason it could not registerwas because (a)the Dns server does not support the DNS dynamic update or (b)the primary zoneauthoritative for the registered namesdoes not support dynamic updates.

Checked error on technet and Ms KB ...has nothing.
Plese help.
Regards
leaks

leaksAsked:
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MindphaserConnect With a Mentor Commented:
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NenadicCommented:
Is it possible to get a bit more information about the setup?  Why two NICs - what is private used for?  Is there DHCP and how is it configured to register names in DNS?  Is DNS service on the server set to listen on both NICs?
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stretchspCommented:
Could there be unnecessary drive mappings on the w2k machines?
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Netman66Commented:
DNS should be pointed at the private NIC on the clients.

Also ensure that DNS is only servicing the internal network.  

It sounds like your clients are trying to register with DNS via the public interface which likely has dynamic updates turned off.  Or, the public NIC is actually on the wrong side of your firewall and DDNS from the clients is being blocked.

Hope this helps.
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RenotsCommented:
leaks,

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