How to set up a bunch of DHCP and DNS in windows 2012?

Question

Domain Name System

We have WIndows server 2012R2.
Automatic registration of DHCP clients in DNS does not work.
What is done.
Raised server, AD, DNS, DHCP.
Scope-s are registered in the DHCP settings, in the properties of IPv4 -> Advanced-> Credentials - a user was created who is a member of the DnsUpdateProxy group.
But, when issuing IP - an entry in the DNS is not created.
In the properties scope ->DNS - selected the parameters:
Enable DNS dynamic updates
Always dynamically update DNS record
Discard A and PTR records when lease is deleted
What to do?

Answer 1

where dns is not registered in the direct zone or in the reverse?