We have an environment with 3 domain controllers (let’s call them DC1, DC2 and DC3). DC1 and DC2 are Windows 2008r2, DC3 is a Windows 2016.
Lately I realized that my Exchange 2010 doesn’t work when I shutdown DC1, telling me “Exchange Autodiscover – Could not find any available Domain Conroller”. I checked the properties of the server in Exchange Management Console – Server Configuration and realized that only DC1 is listed in the System Settings as “Domain controller servers being used by Exchange”.
How can I make Exchange use the other domain controllers as well?