Environment for win2019 as a domain controller, and the other one win2019 as a DHCP server, when the DHCP license failure,

After using another 1 set of 2016 environment for testing, find the DHCP server authorization is successful,

The only difference is that when a DHCP server and domain users belonging to the group contains an "enterprise",

But is win2019 is not found in the Enterprise group, for your guidance