I have a domain controller setup on Windows Server 2008 R2 (Forest) and I have another Windows Server 2008 R2 (New Domain) and I want to create a new domain in an existing forest. I get the following error:

An Active Directory domain controller for the domain mackdev.mackenziecarr.com could not be contacted

The error was "no records found for the given DNS query"

The query was for the SRV record for:
_ldap._tcp.dc._msdcs.mackdev.mackenziecarr.com

I've seem to have tried everything even tried adding this record to the DNS server of the primary forest. I even successfully joined this server to the domain without any issues but trying to create a new domain under the existing forest is no luck.

The primary forest I.P. address is 192.168.2.20 the server that I am using to try to make a child domain is 192.168.2.21

My ipconfig are as follows: I.P. Address: 192.168.2.21 Subnetmask: 255.255.255.0 Gateway: 192.168.2.1

Primary DNS: 192.168.2.20