DNS zone disappering from the Active directory

Hi Samuel,

DNS Server Event ID 4015 typically indicates that the DNS service encountered a critical error while communicating with Active Directory Domain Services (AD DS). If your DNS zone is Active Directory-integrated, the issue could be related to AD replication, DNS application partitions, or access to the zone data.

Please follow these steps to identify the cause:

1. Check Active Directory health: Open Command Prompt as Administrator on your domain controller and run:

dcdiag /test:dns /v

repadmin /replsummary
Check for DNS failures or replication errors.

2. Verify whether the DNS zone still exists in Active Directory: Open dnsmgmt.msc, expand Forward Lookup Zones, and check whether the zone is missing on all domain controllers or only one.
3. Check DNS application partitions: Run: dnscmd /enumdirectorypartitions

Verify that the expected DomainDnsZones and ForestDnsZones partitions are available.

4. Review Event Viewer: Navigate to Applications and Services Logs > DNS Server and check for additional errors, particularly Events 4000, 4007, and 4013, which may help identify the underlying issue.

Could you confirm your Windows Server version (2016, 2019, 2022, or 2025), whether you have multiple domain controllers, and whether the zone disappeared from all DNS servers or just one?

The description for Event ID 4015 from source Microsoft-Windows-DNS-Server-Service cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.

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