When you run the utility, the DPM login dialog appears. Login using Windows account is selected. The utility tries to login to DPM with LoginUsingWindowsAccount(). If the login fails, the utility tries to login to DPM with LoginAsTrustedWindowsAccount(). If both login attempts fail, the utility displays the failed login information.

If you prefer to login to DPM using specific login credentials, disable Login using Windows account, and then enter the user name and password information. To change the login user, click File > Login DPM.