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DCDIAG fails delegation test, Windows Server 2012

Question

Wednesday, June 15, 2016 3:05 PM

I have a simple domain,(teqhou.local) with one DC ("PCSERVER"), which is DC, DHCP, and DNS .

I have eleven other Windows Servers, 2003, 2008 and 2012, all as file servers.

Frequently users have problems logging in, via RDP typically.

Running DCDIAG from my workstation, (Windows 10, connected to the domain), I see:

               TEST: Delegations (Del)
                  Delegation information for the zone: teqhou.local.
                     Delegated domain name: _msdcs.teqhou.local.
                        Warning: Delegation of DNS server pcserver.teqhou.local. is broken on IP:192.168.103.100
                        Error: DNS server: pcserver.teqhou.local.
                        IP:192.168.103.100 [Broken delegation]

The listed IP is correct for the DC ("PCSERVER")

If I go to the DC and run DNS Manager, I see:

DNS

PCSERVER

Cached Lookups

Forward Lookup Zones

_msdcs

local

teqhou

_msdcs 8a985148-1436-43e5-aada-2936d4a49c7b   Alias (CNAME)   pcserver.teqhou.local

Can anyone help me to resolve this, please?

Jim

All replies (1)

Thursday, June 16, 2016 6:21 AM ✅Answered

Hi,

>>Warning: Delegation of DNS server pcserver.teqhou.local. is broken on IP:192.168.103.100

According your dcdiag report,it seems the domain “pcserver.teqhou.local” is not properly delegated.If you want to perform a delegation,we suggest delete (form “local” ) first , after that please recreating the DNS delegation with pointing to the proper address of DNS server that contains this subdomain .

Create a Zone Delegation

http://technet.microsoft.com/en-us/library/cc753500.aspx

If you donot want to perform a delegation,just delete 'local'.Then run DCDIAG /test:dns again.

________________________________________
Best Regards,
Cartman
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