Event ID 4020 — DNS Server Informational Events
Applies To: Windows Server 2008 R2
These event are informational only, and they do not signify any health state of the DNS server. These events are logged when the server is operating normally.
|Product:||Windows Operating System|
|Message:||The DNS server is now starting to load zone %1 in the background. While the zone is being loaded, all DNS updates and zone transfer requests will be refused.|
This is a normal condition. No further action is required.