Exchange 2010 event errors 2601, 2604, 2501

In a recent migration from Exchange 2003/2007 to Exchange 2010, I ran into an issue where I had 2601, 2604, and 2501 errors.


Log Name:      Application
Source:        MSExchange ADAccess
Date:          4/8/2013 12:02:20 PM
Event ID:      2601
Task Category: General
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      Exchange10.domain.org
Description:
Process MSEXCHANGEADTOPOLOGY (PID=1268). When initializing a remote procedure call (RPC) to the Microsoft Exchange Active Directory Topology service, Exchange could not retrieve the SID for account - Error code=8007077f. 
 The Microsoft Exchange Active Directory Topology service will continue starting with limited permissions.


and


Log Name:      Application
Source:        MSExchange ADAccess
Date:          4/8/2013 12:02:20 PM
Event ID:      2604
Task Category: General
Level:         Error
Keywords:      Classic
User:          N/A
Computer:     Exchange10.domain.org
Description:
Process MSEXCHANGEADTOPOLOGY (PID=1268). 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 EXCHANGE10 - Error code=8007077f.
 The Microsoft Exchange Active Directory Topology service will continue starting with limited permissions.

and lastly


Log Name:      Application
Source:        MSExchange ADAccess
Date:          4/8/2013 12:02:20 PM
Event ID:      2501
Task Category: General
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Exchange10.domain.org
Description:
Process MSEXCHANGEADTOPOLOGY (PID=1268). The site monitor API was unable to verify the site name for this Exchange computer - Call=DsctxGetContext Error code=8007077f. Make sure that Exchange server is correctly registered on the DNS server.





The issue was caused by adding a second IP address to the server so that I didn't have to reconfigure all the mail-enabled devices, hosts and applications.  I retired the 2003 and 2007 servers and gave the two extra IP addresses to the Exchange 2010 server.  The server functioned fine with multiple IP addresses, but it had these errors.

To solve this,



  1. open a command prompt as Administrator and run "IPCONFIG /registerdns"
  2. Open the Services snap-in and restart the Microsoft Exchange Active Directory Topology service.  This will warn you that it will restart about six to ten other Exchange services (depending on your configuration).  Some of theses services may result in a brief service disruption so plan accordingly.



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