AD DNS Crashed and recreated but DC not working

My DNS and AD running in the same machine windows 2008 R2. But my DNS corrupted so I removed and add the DNS again but I am getting the below error when I join any PC to the domain.


Note: This information is intended for a network administrator.  If you are not your network's administrator, notify the administrator that you received this information, which has been recorded in the file C:\Windows\debug\dcdiag.txt.

The following error occurred when DNS was queried for the service location (SRV) resource record used to locate an Active Directory Domain Controller (AD DC) for domain "xxx.local":

The error was: "DNS name does not exist."

(error code 0x0000232B RCODE_NAME_ERROR)

The query was for the SRV record for _ldap._tcp.dc._msdcs.xxx.local

Common causes of this error include the following:

- The DNS SRV records required to locate a AD DC for the domain are not registered in DNS. These records are registered with a DNS server automatically when a AD DC is added to a domain. They are updated by the AD DC at set intervals. This computer is configured to use DNS servers with the following IP addresses:


12.47.92.60
12.77.92.45
172.68.1.2

- One or more of the following zones do not include delegation to its child zone:

xxx.local
local
. (the root zone)
jobby1Asked:
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jobby1Author Commented:
I restored the old backup. Some machines I rejoined to domain again. Now ok
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Mike KlineCommented:
Restart the netlogon service on that DC to see if it registers the SRV records again.    When you say AD crashed can you tell us a bit more about that.  

What errors are you seeing in your logs?

Thanks

Mike
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David Johnson, CD, MVPOwnerCommented:
12.47.92.60
12.77.92.45
172.68.1.2


172.68.1.2 should be the first entry
12747.92.60 AND 12.77.92.45 ATT DNS servers should NOT be here
either use forwarders or use root hints
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jobby1Author Commented:
I tired to restart the netlogon  and restarted  the whole server also no use. Still same error.
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jobby1Author Commented:
I tried many options finally I restored the backup it is ok now.
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