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DNS_ERROR_DATAFILE_OPEN_FAILURE
DNS_ERROR_DATAFILE_OPEN_FAILURE means the DNS Server service could not open a file-backed zone file. Check the file’s presence, path, permissions, and availability before changing zone contents.
What to check
- Verify that the configured zone file exists and can be read by the DNS Server service context.
- Check free storage, file-system errors, antivirus or backup locks, and recent changes to the DNS folder.
- Inspect the event log for the exact path and underlying operating-system error.
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