Hi, I'm trying to clean up and organize a AD/Exchange environment that I inherited. I've migrated from Exchange 2007 to 2010 and decomissioned the 2007 servers. Today I wanted to get AD cleaned up a bit so I began to create sites/subnets and move our remote office DC's into appropriate sites. I began by changing "Default-First-Site-Name" to something more appropriate like "HEADOFFICE". Ten minutes after I did this, exchange stopped working and the error: Process MSEXCHANGEADTOPOLOGY (PID=1432). The site monitor API was unable to verify the site name for this Exchange computer - Call=DsGetSiteNameW Error code=800703e5. Make sure that Exchange server is correctly registered on the DNS server. appeared in the event log. Along with many of these: Watson report about to be sent for process id: 10976, with parameters: E12, c-RTL-AMD64, 14.01.0218.015, edgetransport, M.E.Data.Storage, M.E.D.S.ExchangePrincipal.get_ServerFullyQualifiedDomainName, System.InvalidOperationException, 656b, 14.01.0218.012. ErrorReportingEnabled: False Process MSEXCHANGEADTOPOLOGY (PID=1408). When updating security for a remote procedure call (RPC) access for the Microsoft Exchange Active Directory Topology service, Exchange could not retrieve the security descriptor for Exchange server object MJEXCHANGE00 - Error code=8007077f. The Microsoft Exchange Active Directory Topology service will continue starting with limited permissions. Any help is greatly appreciated. M

Hi, Has the sitename been hardcoded in the registry on the Exchange Server? See: http://support.microsoft.com/kb/2025528 That is something that I have had to do at some customers, because of the same errors as you see.Martina Miskovic

Restarting system attendant service seemed to do the trick. Thanks