Can’t Create Mailbox Database In Exchange 2016

When I attempt to create a new Mailbox Database using a PS command similar to the following:

New-MailboxDatabase -Name “DB1” -Server ThatLazyEX-02 -EdbFilePath D:\DB\DB1.edb -LogFolderPath D:\Logs\

I would get an error regarding Active Directory operation failed

Found solution here.

Basically I have to specify the preferred server with the command:

Set-ADServerSettings –PreferredServer DC1

If you run Get-ADServerSettings it will display what it is. Before running the set command the server was {}.

After running the set command the New-MailboxDatabase command worked.