When opening the Management Console in your Exchange 2010 you might noticed the Server Configuration node missing. Also you might notice that when you open a mailbox you will not see the size and other information and you will get the yellow lock and no data is shown.
In most cases it would be because you have Outlook installed and you logged in with another user in Outlook. The credentials will be saved in the vault and it will try to log into the Management Console with that user. In fact when you launch the Management Console and click on the Microsoft Exchange On-Premises node, while loading you will notice it uses the user.
You would need to do the following:
– Open a command prompt using “Run as Administrator”
– Run the command “control keymgr.dll”
– Click “Back up vault” and follow the prompts to back everything up
– Remove any credentials related to the other user
After this, try to open the Management Console, if the problem persists a quick restart of the server will do the job.