I've got an existing active directory domain with a domain controller that is Server 2003 and exchange server 2007 which is working normally. Right now, I need to install new domain controller in branches. So I create a new sites and also subnets and I move domain controller server from default-first-site-name to a new site I have created. All the member computers working normally after I move the domain controller server to new site but exchange server 2007 become failed.I move back the server to default-first-site-name and the exchange server 2007 is working normally. Please tell me how to solve this exchange server 2007 problem, if I need to move my first domain controller server from default-first-site-name to new site, rename the site, etc. For future, I also need to create more than one global catalog server.Thank you.G. Joseph

Hi,I recommend you to prompt a new DC in the new website. Do not move the existing DC to the new website.When we install Exchange, it select the DC to extend the AD schema, add a lot of Exchange related information to AD. Since this is the first one, it should be a GC. How to Prepare Active Directory and Domainshttp://technet.microsoft.com/en-us/library/bb125224.aspxBesides, please find event 2080 from event view and then check the DCs that discovered by Exchange Server .Event ID 2080 from MSExchangeDSAccesshttp://support.microsoft.com/kb/316300http://www.microsoft.com/technet/support/ee/transform.aspx?ProdName=Exchange&ProdVer=8.0&EvtID=2080&EvtSrc=MSExchangeADAccess&LCID=1033Regards,Xiu

Hi, thanks for reply...Meaning this first AD never be move to new site or be rename after exchange has been installed? :(Okay... if I create another new AD with different subnets and then/someday let saythe first AD fail (hardware,harddisk,etc fail)... using ntdsutil to rebuild AD in different other AD, the exchange will not run anymore isn't it?Please tell me, how to solve, if this situation happen. Thank you.Best Regards,G. Joseph

Still waiting the answer....