Hi All,
I'm busy with 2 new DCs for a client. Done numerous DCPROMO's without an issue up until now.
When I DCPROMO, the prerequisites all pass with no issues. It then starts to prepare the installation, and seemingly stalls on preparing the local computer for ADDS. There is 1 error in the event log:
8524 - The DSA Operation is unable to proceed because of a DNS lookup failure.
However, I can perform an NSLOOKUP with no issues to any of the 3 existing DCs.
Things I have done:
* Restarted the VMs, and then uninstalled DNS / ADDS before restarting and trying again (I deleted any SYSVOL/NTDS folders);
* Deleted the computer object out of AD Sites & Services;
* Checked NSLOOKUP as I mentioned and it passes;
* Firewalls turned off on source / destination VMs;
* No traffic passing through a firewall on the network.
I am a member of the Domain Admins group, and the existing DCs are running Windows Server 2016 v. 1607 (14393.3564) while the new DCs are running Windows Server 2016 v. 1607 (14393.3504).
Any help would be appreciated.
Thanks!