Distributing trusted certificates to devices and work with 2 differents core servers

Dear,

I want to use two differents core servers following this article : http://help.landesk.com/Topic/Index/ENU/LDMS/9.5/Content/Windows/client_c_deploying%20certs.htm

I have actually all workstations use an agent points to an external Landesk Server (Core1). But I want to have a "copy" on my own Landesk server (Core2) to do some manual inventory and custom access to the SQL DB.

I follow the procedure to copy the certificate from Core2 to some clients. But nothing change in the console Core1. So, I add manually my workstation (with certificate from Core1 and Core2) but inventory failed on Core2.

What i have missed up ?

Regards,

Yves