Hi all

I have a little bit of an issue with my second DC.

1) it is generating Error 5774 in the Event viewer:

The dynamic registration of the DNS record '_kerberos._tcp.Default-First-Site-Name._sites.hinchleyw.sch. 600 IN SRV 0 100 88 SRV-DC02.hinchleyw.sch.' failed on the following DNS server:

DNS server IP address: ::
Returned Response Code (RCODE): 0
Returned Status Code: 0

For computers and users to locate this domain controller, this record must be registered in DNS.

Determine what might have caused this failure, resolve the problem, and initiate registration of the DNS records by the domain controller. To determine what might have caused this failure, run DCDiag.exe. To learn more about DCDiag.exe, see Help and Support Center. To initiate registration of the DNS records by this domain controller, run 'nltest.exe /dsregdns' from the command prompt on the domain controller or restart Net Logon service.
Or, you can manually add this record to DNS, but it is not recommended.

Error Value: DNS name does not exist.

I can map to DC02 drive but when I do a DCdiag I get this:

Doing initial required tests

Testing server: Default-First-Site-Name\SRV-DC02
Starting test: Connectivity
The host e5d5f838-5646-4c16-824e-d2bf971bcd58._msdcs.hinchleyw.sch
could not be resolved to an IP address. Check the DNS server, DHCP,
server name, etc.
Got error while checking LDAP and RPC connectivity. Please check your
firewall settings.
......................... SRV-DC02 failed test Connectivity

Doing primary tests

Testing server: Default-First-Site-Name\SRV-DC02
Skipping all tests, because server SRV-DC02 is not responding to
directory service requests.

I noticed the A record is missing from DNS, adding this manually makes no difference

Could someone help?

Thanks as always!