Ipdiscover not selected automaticly

Hi,

I installed OCS to manage my parc (Ubuntu 20.04, OCS Server 2.9, agent ocs 2.9.0).

I noticed that Ipdiscover computer are no selected automaticaly in subnet (02 in each subnet).

I had to force manualy the ipdicover machines.

I had more than 100 sunbet and.

Any idea how to force ipdiscover machines selection automaticly ?

Thanks