Unable to create a new user

I've just installed the Active Directory plugins 1.0.2 and I am trying to script an AD user creation using Orchestrator 4.2.0. I am using Windows 2008 R2 as my Active Directory server.

I get that error when I use port 3286 (using GC) :

"Unable to create a new user: InternalError: Failed to create user account...[LDAP: error code 53 - 00002035: LdapErr: DSID-0C090BF4, comment: Operation not allowed through GC port, data 0, v1db0 ] (Workflow: NewUsers / Create User (item7)#6)"

I get that error when I use port 389 (default port) :

"Unable to create a new user: InternalError: Failed to create user  account...[LDAP: error code 53 - 0000052D: SvcErr: DSID-031A120C, problem 5003 (WILL_NOT_PERFORM), data 0] (Workflow:NewUsers / Create User (item7)#3)(Workflow: NewUsers / Create User (item7)#6)"

Configuration on the server side looks good. I am using the same information as the LDAP configuration (without the copy checkbox) and I am using an Administrator as the user (until I can fix this error).

This is the script line that cause the error :

userOU.createUser(accountName,domainName,displayName);

where accountName, domainName and displayName are string and userOU is a valid OU selected using the GUI.

Anyone has any idea how to fix this?

thanks,

Phil