If you are connecting to a networked computer, in most cases you will need to provide the necessary credentials for accessing the network share. For example, this is possible when you select a backup storage in the Browse for destination window. The Authentication Settings window appears automatically when you click a networked computer name. To open it manually, click Specify credentials for this locations on the toolbar.
If you need to specify the user name and password:
When you click the Test connection button, the computer will try to connect to the selected network share. If you receive an error message, check if the credentials are correct and provide the correct user name and password for the selected network share. To repeat the connection attempt, click the Test again button.
Having provided the required information, click Connect.