This seems to have begun on May 2nd. Everything is working correctly, but this error keeps popping up.
Single domain, 5 DC's, 4 DHCP Servers, 1 is server 2016, 3 are server 2019 1 is server 20121 R2, all on different subnets and physically distanced, all connect in a hub and spoke configuration using Spectrum with State of Ohio ITC providing core services. Yes DHCP is running on all DC's set to always dynamically update DNS A and PTR records. Secure updates only, DNSUpdateProxy group only contains the DHCP server names, DHCP lease set to 48 hours, DNS scavenging set to 7 days only on 1 server, have run the dnscmd /config /OpenAclOnProxyUpdates 0. Once again everything seem to be working correctly, but the error message is making me crazy.
Maybe it was generated by a different device?
Usually a DHCP client keeps its IP as long as he renews the IP within the lease. But as DHCP has 2d and DNS has 7d, it may happen, that DHCP changes the IP, while DNS has it registerd to different device. They are usually simmilar according the times.
What I would do is just to delete the PRT record and to see, if the current device then registers correctly.