We have just stood up a new Hyper-V host with 2 VMs in a separate subnet and physical location. When I try to promote one of the VMs to a DC, I get an error that says the following:

The following error occurred when DNS was queried for the SRV record used to locate an ADDC for domain "this.local"

The error was "DNS name does not exist" error code RCODE_NAME_ERROR

The query was for the SRV record for _ldap_tcp.dc_msdcs.this.local.

I can ping the DC just fine. I can RDP into all machines by IP, but not by name (since DNS is messed up.)

The subnet is in another physical location, connected by site-to-site VPN. However, we checked the tunnel and it appears to be fine.

Anyone have any fixes for this issue? Thanks.

  • What DNS servers are the clients in the network using? Are they using your AD DNS servers? – joeqwerty Mar 25 '15 at 16:07

You cannot promote a DC without it being able to query the current domain by DNS.

To promote a DC it will have to find one of the current DCs in that domain, to copy the Current Active Directory-database from. It does this by using DNS-records found in the zone this.local in your case.

  • The new subnet is The PDC is in, and secondary DCs reside in 9.0 and 2.0. None of the VMs in the 34.0/24 space can join the domain, regardless of whether or not they're prospective DCs. Yet, I can ping all of the DCs from 34.0/24, and I can RDP into them. Basically, on the 34.0/24 side, DNS simply does not work. – Dave Mar 25 '15 at 15:29
  • Check that the computer has a DC set as its DNS server, and verify that port 53 (TCP&UDP) have been opened. Try specific nslookup request such as nslookup this.local <IP-OF-PDC> – Zerqent Mar 26 '15 at 8:46
  • I ended up rebuilding the DC, using the proper DNS server as the primary (once the device was on the VPN back to the PDC), and it works now. The mistake I made was in creating the BDC and copying it over to the Hyper-V host. Thanks for your response though, as it was absolutely necessary for the BDC to be able to see another DC before being promoted. – Dave Apr 3 '15 at 2:53

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