Hello Experts,
I have a Windows 2003 SP2 Enterprise server with Exchange 2003 SP2 serving about 10 users only.
I was trying to migrate to Windows Server 2012 Essentials. After I setup the new server and did the migration, I found
that Essentials 2012 doesn't support Exchange as 2011 does. Then I demoted the new 2012 and removed it from the domain and re-formated it to install the Windows 2008 R2 on it.
Their are two problems now:
1. Emails are no longer working.
2. I receive an error when a new computer tries to join the domain saying to check DNS settings:
Note: This information is intended for a network administrator. If you are not your network's administrator, notify
the administrator that you received this information, which has been recorded in the file C:\Windows\debug\dcdiag.tx
The following error occurred when DNS was queried for the service location (SRV) resource record used to locate an Active
Directory Domain Controller (AD DC) for domain "ourdomain.com":
The error was: "This operation returned because the timeout period expired."
(error code 0x000005B4 ERROR_TIMEOUT)
The query was for the SRV record for _ldap._tcp.dc._msdcs.ourdo
The DNS servers used by this computer for name resolution are not responding. This computer is configured to use DNS servers
with the following IP addresses:
192.168.100.10
Verify that this computer is connected to the network, that these are the correct DNS server IP addresses, and that at
least one of the DNS servers is running.
My DNS settings are correct and the old DC is acting well as a DNS server for forwarding DNS requests to the outside.
I have transfered all 5 FSMO roles before demoting the new DC.
I have a backup of the old DC 2003 but I will lose some data if I restore it.
What shall I do now?