What IP addresses should be correctly assigned to the network interfaces of internal dns servers?

Question

Domain Name System

Good day!
Situation: LAN with local domain behind a gateway, nothing special. Two controllers on Win 2008 R2, they also have the role of DNS servers.
Problem: On the primary domain controller, the following error hangs in the DNS Server Role Best Practices Analyzer:

spoiler

Проблема:
Петлевой IP-адрес не указан у сетевого адаптера Подключение по локальной сети как DNS-сервер или стоит в списке первым.

Воздействие:
Если петлевой IP-адрес стоит первым в списке DNS-серверов, Active Directory может не иметь возможности найти партнеров репликации.

Разрешение:
Измените параметры адаптера, добавив петлевой IP-адрес в список DNS-серверов на всех активных интерфейсов, но не ставя его в списке серверов первым.

This is the first time I encounter such an error. Always used this manual, and never registered 127.0.0.1 on interfaces. But even after adding 127.0.0.1 to the list of dns addresses, I still get this error. There is no such error on the standby controller.

Answer 1

The same problem is discussed here: https://qastack.ru/server/394804/what-should-the-o...
they advise it like this:
DC01
Primary DNS 10.1.1.2
Secondary DNS 127.0.0.1
DC02
Primary DNS 10.1.1.1
Secondary DNS 127.0.0.1
Well, you seem to have it configured exactly like that, don't you?