LDAP MS Active Directory Group Authentication Solved Locked

Hello, I made the setup for LDAP server and created the special group in Active directory. I added this group thru  the Manage Users MobiControl Security User/Group  tab and granted MobiControlAdministrators permission.   I added to this group several number of users thru the AD snapin. However, when I try to log in to Soti with AD account - I get the following error: ********************************************************************** Exception: Authorization Server Host: Failed to authenticate user **********************************************************************[BusinessLogicException: Parameter username has invalid value ruuxxxxxx.]   at Soti.MobiControl.Providers.Ado.Legacy.SecurityPrincipalProvider.GetByNameDomainLdap(String name, String domain, String ldapConnectionName)   at Soti.MobiControl.Providers.Ado.Legacy.SecurityPrincipalProvider.GetByName(String name)   at Soti.MobiControl.ManagementService.AuthorizationService.Authenticate(LogOnRequest request, Boolean& isAdUser)   at Soti.MobiControl.ManagementService.AuthorizationService.InitialUserSession(LogOnRequest request)   at Soti.MobiControl.ManagementService.Security.AuthorizationManager.AuthorizeWithUserCredentials(String userName, String password, String source)   at Soti.MobiControl.Security.AuthorizationServer.Controllers.AccountController.<LogOn>d__5.MoveNext() ********************************************************************* Should I make some additional setup ?