When installing an agent or the management server (or both), you need to specify the list of users whom you want to allow to manage the machine remotely by using Acronis Backup & Recovery 11.5 Management Console.
By default, the list contains all members of the Administrators group on the machine; note that this includes the domain administrators (if the machine is in an Active Directory domain).
The setup program creates the Acronis Remote Users group and adds the listed users to it. By adding or removing group members, you will add or remove users who are allowed to connect to the machine remotely.