EXCHANGE 2010: An error caused a change in the current set of domain controllers

 

 

After some digging in the profile, I found out the following file, which seemed to be the cause of the problem:

c:\users\<specific user>\appdata\roaming\microsoft\mmc\Exchange Management Console

 

Rename or delete this file, restart the EX2010 EMC and all errors will be gone.

 

From:

http://trycatch.be/blogs/pdtit/archive/2010/02/04/an-error-caused-a-change-in-the-current-set-of-domain-controllers-exchange-2010.aspx