no connection over https for windows clients

Hi Team,
I have configured my OCSinventory server with valid certificates. but when I try to sync my OCS windows client systems over HTTPS it's not getting sync & getting below error.
(ERROR * AGENT => Failed to send Prolog <SSL peer certificate or SSH remote key was not OK>)

I am able to sync my OCS clients from Linux & MAC OS over HTTPS. facing issue with windows clients only.

Please find below details of the server.
Server details
OS: Debian 10 buster
OCS server version: 2.8
WebServer : Apache (2.4.38-3+deb10u5)