When the issue occured Exchange 2010 would begin spitting the generic errors you receive whenever there is no Active Directory domain controller available.Some of these errors include: Log Name: Application Source: MSExchange ADAccess Date: 13/08/2012 AMEvent ID: 2114Task Category: Topology Level: Error Keywords: Classic User: N/AComputer: Exchange2010.domain.local Description: Process STORE. Topology discovery failed, error 0x80040952 (LDAP_LOCAL_ERROR (Client-side internal error or bad LDAP message)).
The only way to bring it all back, is to either restart all services, just the AD Topology or restart the entire server.
This so far has not happened to the two physical servers. I have tried the usual, checked security group memberships and even re-built one of the CAS Servers from scratch, still happened a week later.
I had an issue at a customer site where a vitalised multi role Exchange 2010 server was randomly loosing access to Active Directory.
There were two Active Directory Domain Controllers with the Global Catalog role in the same Active Directory site as the Exchange 2010 server with highspeed 1gbps LAN between the servers.
Use the Ping or Path Ping command-line tools to test network connectivity to local domain controllers.
Log Name: Application Source: MSExchange ADAccess Date: 13/08/2012 AMEvent ID: 2103Task Category: Topology Level: Error Keywords: Classic User: N/AComputer: Exchange2010.domain.local Description: Process MSEXCHANGEADTOPOLOGYSERVICE. All Global Catalog Servers in forest DC=internal, DC=domain, DC=com are not responding: DC1.domain.local DC2.domain.local Log Name: Application Source: MSExchange ADAccess Date: 13/08/2012 AMEvent ID: 2604Task Category: General Level: Error Keywords: Classic User: N/AComputer: Exchange2010.domain.local Description: Process MSEXCHANGEADTOPOLOGY (PID=1468).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 Exchange2010 - Error code=80040934. I have an environment consisting of 6 VMWare Exchange 2010 enterprise servers, two physical and 6 GC/DC's in one domain with multiple sites.All exchange servers are in site 1, there are none in sites 2,3.4 only users.Now every few days, on one server randomly (so far only the VMWare ones) we are getting unresponsive Exchange services caused by the loss of comunication to all Domain Controllers/Global Catalogs.There are 6 and they are all responding, however Exchange goes around the houses tries them all and reports every 5 mintues that all domain controllers are not responding.