1 DHCP server running Server 2016
1 Master name server - not a DC
4 DCs all running DNS - both active directory integrated and regular DNS
I'm helping troubleshoot an issue with DHCP failing to register DNS updates.
I'm pretty sure DHCP is setup to register DNS on behalf of the clients. See my screenshots below of IPv4 Properties. I have also configured the update registration credentials -- the account used there is a member of the DnsAdmins group. I have also placed the DHCP server in the DnsUpdateProxy group.
Here are some errors I'm seeing in Event Viewer:
PTR Record registartion for IPv4 address [192.168.1.50] and FQDN test-fqdn.test.net failed with error 9005 (DNS operation refused).
PTR record registration for IPv4 address [192.168.1.50] and FQDN test-fqdn.test.net failed with error 9004 (ENS request not supported by name server).
I've researched these errors but haven't had much luck.
Here are some error's i'm seeing in the DHCP logs:
DNS Update Request,192.168.1.50,test-fqdn.test.net,,,0,6,,,,,,,,,0
DNS Update Failed,192.168.1.50,test-fqdn.test.net,,,0,6,,,,,,,,,2
Any help is much appreciated and thank you in advance.