Hi there,
This should be registered as dynamic in your servers. You can check the below article to see if this helps you.
The host's A record is registered in DNS after you choose not to register the connection's address
https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/a-record-registered-host-dns
You won't have to update your DNS records manually each time your IP address changes. Dynamic DNS (DDNS) is a service that automatically checks for updated IP addresses for a website, server, or application.
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