Dynamic DNS updates are not enabled on the DNS forward lookup zone '%2'. This may result in failures to register host (A ...

Dynamic DNS updates are not enabled on the DNS forward lookup zone '%2'. This may result in failures to register host (A or AAAA), LDAP service (SRV), and alias (CNAME) resource records, which can cause many operations to fail, including domain join, domain controller promotion, user logon, and replication of Active Directory partitions.
For more information, see http://go.microsoft.com/fwlink/?LinkId=115413.