DNS error while installing Exchange 2007 (Full Version)

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Mayer -> DNS error while installing Exchange 2007 (27.Jun.2008 11:34:40 PM)

I am installing 2007 exchange standard on 2003 server Enterprise and I am having few problems.  While its testing its giving me this error.  I have new domain that I just setup and everything seems fine.  I can ping the GC/DC no problems so I am not sure why the error says cantnot contact domain controller...

please help


Hub Transport Role Prerequisites
Failed
Error:
Active Directory does not exist or cannot be contacted.
Recommended Action: http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.3&id=51e5500d-8b18-4eee-bb8e-925d063b60a1
Error:
Setup encountered a problem while validating the state of Active Directory: An Active Directory error 0x8007203A occurred while searching for domain controllers in domain *******.com: The server is not operational.
Name: "********"

Warning:
Setup cannot detect an SMTP or Send connector with an address space of '*'. Mail flow to the Internet may not work properly.
Warning:
When you run Exchange Server 2007 Service Pack 1 (SP1) on Windows Server 2003 or earlier versions of the operating system, we recommend that you install Microsoft .NET Framework 2.0 Service Pack 1 (SP1). If you cannot install .NET Framework 2.0 SP1, install hotfix Microsoft Knowledge Base article 942027 from http://go.microsoft.com/fwlink/?linkid=101219.
Warning:
Setup cannot contact the primary DNS server (10.0.0.21) using TCP port 53. Check that the IP address of the DNS server is correct and that the DNS server is reachable.

Elapsed Time: 00:17:07

Client Access Role Prerequisites
Failed
Error:
Active Directory does not exist or cannot be contacted.
Recommended Action: http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.3&id=51e5500d-8b18-4eee-bb8e-925d063b60a1
Error:
Setup encountered a problem while validating the state of Active Directory: An Active Directory error 0x8007203A occurred while searching for domain controllers in domain ********.com: The server is not operational.
Name: "********.com"

Warning:
When you run Exchange Server 2007 Service Pack 1 (SP1) on Windows Server 2003 or earlier versions of the operating system, we recommend that you install Microsoft .NET Framework 2.0 Service Pack 1 (SP1). If you cannot install .NET Framework 2.0 SP1, install hotfix Microsoft Knowledge Base article 942027 from http://go.microsoft.com/fwlink/?linkid=101219.
Warning:
Setup cannot contact the primary DNS server (10.0.0.21) using TCP port 53. Check that the IP address of the DNS server is correct and that the DNS server is reachable.

Elapsed Time: 00:13:41

Mailbox Role Prerequisites

Status: The tests are currently loading and the version is being checked.
Elapsed Time: 00:07:47




Sembee -> RE: DNS error while installing Exchange 2007 (30.Jun.2008 2:21:50 PM)

Ignore the SMTP Connector error.

As for the AD errors, ensure that you have no external DNS servers in the network configuration - only domain controllers should be listed. Is the machine a member of the domain? Any firewalls between the domain controllers and the Exchange server?

Simon.




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