Error:
The description for Event Id (4000) in Source (Microsoft-Windows-DNS-Server-Service) cannot be found. Either the component raises this event is not installed on your local computer, or the installation is corrupted.
Cause:
1. DC/DNS server has lost its Secure channel with itself or PDC. (or restore DC/DNS from old backup)
Solution:
1. Point primary DNS to another DC/DNS IP address.
2. Run CMD as administrator. Type command below:
netdom resetpwd /server:<PDC.domain.com> /userd:<Domain\domain_admin> /passwordd:*
Example:
netdom resetpwd /server:<DC.contoso.com> /userd:<contoso\administrator> /passwordd:*
3. Enter password of Domain\domain_admin (user you enter in step 2).
4. Reboot DC/DNS.
