Hello. We've got this problem about creating an endpoint to Active Directory from CA Identity Manager.

So the problem is we cannot connect to the connector from the Active Directory. In our scenario, we are using the Non-Production type of the Identity Suite v14.2 and we set up two VMs for the connector server (Windows Server 2012) and the Active Directory itself (Windows Server 2016). The reason for putting connector server and Active Directory separately is because of this document that shows the requirement for installing the Connector Server Connectors and Endpoint Types - CA Identity Manager - 14.0 - CA Technologies Documentation said that it requires the Windows Server 2012 as the OS. We also have another VM (Windows Server 2012) and has the external database inside using SQL Server 2017 for the Virtual Appliance configuration.
For the set up for both connector server and Active Directory, following this tutorial How to Connect to Active Directory - CA Identity Management & Governance Connectors - CA Technologies Documentation , we have done these steps:
1. In the Active Directory, we have created user directory.
2. In the Connector Server, we have installed the Connector Servers (C++ Connector Server and Java Connector Server) inside.
3. Both of the Active Directory and Connector Server have joined their domain
We have set up the Connector Server on the localhost. However, we kept on getting this automatically connected exter nal connector server when we try to connect to the server like the figure shown below.
The problem occurred when we installed the Connector Server (C++ and Java) inside our localhost (Windows 10).
Our question is do we need to install the connector server in the localhost?
If not, where do we need to install the connector server?
Also do we need to set up the CA IAM Connector Server (the one that is provided in the virtual appliance), and what do we need to input for this scenario?
Thank you very much.