ik probeer een server te promoten naar DC maar dat wil niet lukken ik krijg deze melding. 
The domain "name.domain.nl cannot be contacted. Ensure that the DNS domain name is typed correctly. This condition may caused by a DNS lookup problem. If this domain was recently created, its name may not yet be registered with the Domain Name Service. For information about troubleshooting common DNS lookup problems, please see the following Microsoft Web site:
http://go.microsoft.com/fwlink/?LinkId=5171
The domain "name.domain.nl cannot be contacted. Ensure that the DNS domain name is typed correctly. This condition may caused by a DNS lookup problem. If this domain was recently created, its name may not yet be registered with the Domain Name Service. For information about troubleshooting common DNS lookup problems, please see the following Microsoft Web site:
http://go.microsoft.com/fwlink/?LinkId=5171