Windows Server 2013; Exchange Server 2013 with Cumulative Update 1
Cannot install Cumulative Update 3 for Exchange Server 2013. It fails with
[xxx] [0] [ERROR] Setup encountered a problem while validating the state of Active Directory: Active Directory operation failed on . The supplied credential for 'XXX\Xxx' is invalid. See the Exchange setup log for more information on this error.
[xxx] [0] [ERROR] Active Directory operation failed on . The supplied credential for 'XXX\Xxx' is invalid.
[xxx] [0] [ERROR] The supplied credential is invalid.
(Crosses - XXX - replace original values.)
I have found that a few others have experienced the same problem but found no solution, nor could come up with anything myself. If it is any hint, Event 40961 was logged in the Event Viewer around the same time on almost all installation attempts to be purely conincidental:
The Security System could not establish a secured connection with the server ldap/xxx.xxx/xxx.xxx@XXX.XXX. No authentication protocol was available.
Both Windows Server and Exchange Server otherwise work OK, and do not recall any issues with Cumlative Update 1 installation.