How to remove old IP from appearing in DNS table

rgardeck 96 Reputation points
2021-04-28T01:58:38.727+00:00

An old IP address of a server still populates into Win 2012 DNS server. The new server is up and running and I can ping it. After an hour or so, ping no longer connects because old IP populates into DNS. I have tried deleting the old IP many times. It goes away and everything is fine. After a few hours, the old IP appears back into DNS and communication to new server stops. I have tried flushing DNS many times. Rebooted server many times. Any suggestions?

Windows DHCP
Windows DHCP
Windows: A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.DHCP: Dynamic Host Configuration Protocol (DHCP). A communications protocol that lets network administrators manage centrally and automate the assignment of Internet Protocol (IP) addresses in an organization's network.
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  1. rgardeck 96 Reputation points
    2021-04-28T16:35:53.59+00:00

    Resolved this. Found that the server 2 DHCP address was stuck on another DC. Once I found and deleted that under DHCP management, it no longer appears in DNS table.

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  1. Jiang Zhang 786 Reputation points
    2021-04-28T09:44:59.013+00:00

    Hi,
    Before we go further, I would like to confirm the following information with you:
    Firstly, is this resource record dynamic or static? If it is a static resource record, I would like to know whether the server is a DC or a member server?

    Best Regards,
    Mulder Zhang

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