Registering Computer with DNS

I have a server named Cognos.  It used to be assigned IP address  for various reasons, I gave it a new IP address of  When I try nslookup and type in Cognos, it resolves to the old IP address of  I have done ipconfig/flushdns on both of my DNS servers, stopped/started the DNS service, rebooted both of the DNS servers with no success.

I have also deleted the old name out of the WINS database on the WINS server.  I have performed an ipconfig /register DNS on the Cognos server.  It seems that no matter what I do, it still shows up as COGNOS.  Either thru nslookup or when I ping.  It fails the ping because it is resolving to when it should be resolving to  I can ping and it comes back fine.

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Rajith EnchiparambilOffice 365 & Exchange ArchitectCommented:
Delete the A records for your machine and restart it. ANd it will re-register the records in DNS.

You can flush your PCs DNS CAche as well.

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