(Just postsed this on my technet post as well)
Still trying to chase down this issue. Recent things I've tried:
Set interfaces on DNS down to a single IPv4 address (removed IPv6 addresses).
Cleaned out old WINS server info from DNS
DHCP -DNS properties:
DHCP - Advanced - IPv4 Credentials:
DNS Primary Forward Lookup Zone:
(I've tried with and without the DHCP and DNS computer accounts in here as well.
DNSAdmins group (same thing here):
This doesn't seem to be that complicated, but I can't figure it out why these are failing to update for the life of me. This all started when I migrated my DHCP server from a 2008R2 server to a 2019 Server (new image, not an in-place upgrade).
If I do a "IPCONFIG /RENEW" I get 3 events from my machine account, 1 for the forward lookup zone from my wired NIC, one from the PTR record for my wired NIC, and 1 for the forward lookup zone on my wireless NIC:
When I check DNS, I do see all 3 of these records are there and were updated this morning. What am I missing? Anyone have any ideas? Could the clients be updating DNS, and when the DHCP server tries to it fails bc the record was already modified?