Bon, j'ai vu qu'il y avais deux fois http:// dans le ini du coup j'ai modifié, voici le nouveau log:
Starting OCS Inventory NG Agent on Tuesday, January 21, 2020 11:00:45.
AGENT => Running OCS Inventory NG Agent Version 2.6.0.0
AGENT => Using OCS Inventory NG FrameWork Version 2.6.0.0
AGENT => Loading plug-in(s)
AGENT => Using network connection with Communication Server
AGENT => Using Communication Provider <OCS Inventory NG cURL Communication Provider> Version <2.6.0.0>
AGENT => Sending Prolog
ERROR *** AGENT => Failed to send Prolog <HTTP Status Code #400>
AGENT => Unloading communication provider
AGENT => Unloading plug-in(s)
AGENT => Execution duration: 00:00:00.