I have a problem with creating an RODC in my test network situation.
I have a functional domain controller on a 192.168.100.0 network.
I want to include an RODC on a 192.168.129.0 network
Both servers are on the same domain.
The two networks are connected via a router.
The firewall is turned off on the router.
The RODC installation goes smoothly until I try to progress from the Network Credentials page on the Active Directory Domain Services Installation Wizard.
I receive an error stating that:
An Active Directory domain controller for the domain xxx.local could not be contacted.
Further information states that:
DNS was successfully queried for the service location (SRV) resource record used to locate an Active Directory Domain Controller for domain xxx.local:
The query was for the SRV record for _ldap._tcp.dc._msdcs.xxx.local
The following AD DCs were identified by the query:
xxx.xxx.local
Common causes of this error include:
– Host (A) records that map the name of the AD DCs to its IP addresses are missing or contain incorrect addresses.
– Active Directory Domain Controllers registered in DNS are not connected to the network or are not running.
This process is succesful when I use an IP address for the RODC server that is on the same network as the Domain Controller.
It is only when I use an IP address of a different network that I receive the error.
I have tried creating a Secondary DNS zone for the RODC on the domain controller and also added the routers IP adddress in the RODCs host file.
I am guessing that this is a DNS issue, but I can’t put my finger on where I am going wrong.
Cheers
Neil