My domain has been set up for years and working fine. Today when I tried to join a new vm running Server 2012 to the domain, I got the error "The following error occurred attempting to join the domain mydomain.com. The network path was not found." I also tested a computer running Windows 10 and same issue.
I'll be honest b/c I just want the fix. Yesterday I had set up another vm and it joined successfully, it had the Remote Desktop Services role and somehow in Server Manager I added a DNS server to manage under Manage > Add Servers > DNS. I don't know why I did this and think i got distracted. Then I didn't need that vm and deleted it. Did I confuse DNS?
I've searched everywhere and feel like all of my DNS records are fine. PTR, GC, everything. I've got forward and reverse lookup zones. I have my DomainDnsZones, ForestDnsZones set up, I haven't' changed a thing. But this issue didn't happen until I added the server to manage under Server Manager. I think my Reverse Lookup Zone is right. I have the NS record type, the SOA record type and then all the PTR for the computers on the domain.
When I do a nslookup ad on the server I'm trying to join the domain, I get this, but it sees my DC and the correct IP.
***mydomaincontroller.mydomain.com can't find ad: Non-existent domain