No Windows Agent inventoried in OCS server console

Hi,

I have OCS Inventory NG server with version 2.1.2, and deploy windows agent version 2.0.5 and 2.1.1 to the clients. But none windows client that is monitored in OCS server web console.

No issue in network connection, and http port : 80 in OCS management server is allowed.

I can't find reference in google, also documentation about OCS version 2.1.2.

How to trobleshooting communication between server and client agent?

Anyone please, tell me.

Thanks.