Unable to Change Domain Logon Name

Hello,

I created the 50 different users in active directory and assigned them a role in CRM. But when I try to login as the user. I get his error message " Unable to Change Domain Logon Name. You do not habe the necessary permission to change the domain logon name for this user" .

1. I change the AutoGroupManagement Valur to 1 in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft.

2. Restarted the server to and tried to login. Still the same error.

3. Cheked for disabled user but that list is empty.

Could anyone help me with this issue with CRM.

Regards,

Auro