Non-Existent Domain Inquiry

Question

We are having a problem with the AD server not finding the IP of some of the new Dell computers we installed on the domain. This is causing one of our programs that we use to slow down. I will attach a picture of what happens when I run the NSLOOKUP command with one of the computers IP. I have tried rejoining a few of the computers to the domain and still no luck. Let me know your thoughts on this.

Answer 1

Hi @Vlad Rodgers

To be able to join a machine to a domain, it must be able to resolve the DNS domain name of target domain. You set a domain controller as DNS resolver in the machine if the DNS domain zone is hosted in domain controllers. You should also check if all required network port is opened between the machine and domain controllers.

Please don't forget to accept helpful answer

Answer 2

Hi Vlad Rodgers,

Please check the DNS and make sure the A records for the new computers are correctly registered in the forward lookup zone for your domain. Try ipconfig /registerdns to manually register the DNS records for the new computers. Also try flushing the DNS cache by running ipconfig /registerdns.

Best Regards,

Ian Xue

---

If the Answer is helpful, please click "Accept Answer" and upvote it.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.