Currently seeing an issue with a client as per this article :
The setup/history of this configuration is:
Exchange 2003 running on a DC
Additional DC introduced running 2008 R2.
FSMO roles transferred from Exchange 2003 server to 2008 R2 server.
A week or so later the issues mentioned in the linked article are experienced.
I cannot select a different DC for Exchange using ESM because an error message is seen when attempting to view the Directory Access tab.
Any help appreciated.