You can launch the Veeam.Backup.DBConfig.exe utility from the Start menu by clicking Configuration Database Connection Settings.
Alternatively, you can use the Veeam.Backup.DBConfig.exe file located in the installation folder. By default, the path to the folder is the following: %PROGRAMFILES%\Common Files\Veeam\Backup and Replication\DBConfig
To run the utility, you must have administrative rights on the local machine, as long as the utility makes changes to the registry. If prompted at the launch, choose Run as administrator.
To manage connection settings for Veeam Backup & Replication and/or Veeam Backup Enterprise Manager configuration database, use the launched Veeam Backup & Replication Configuration Database Connection Settings wizard.