The login dialog is displayed, a user is currently logged-in but no client can be selected. The cause can be that previous clients were not stopped correctly and corresponding Java processes are still active.

  1. Stop the client.
  1. Open the task manager by pressing Ctrl+Alt+Del and selecting Start Task Manager.
  1. Check the Processes tab to see if Java processes are still active.
  1. If Java processes are active, end the processes. Keep in mind to only end Siveillance Control related Java processes, since other applications can use Java, too.
  1. Restart Siveillance Control client and login again.
  1. If still no selection is available, restart the Siveillance Control server with the following command:
    siveillancecontrol restart

For more information refer to: No Startup of Service on Servers.