I found, read and followed this post and it is still not working on my new server.
community freepbx org/t/no-way-to-enable-intrusion-detection-sync-firewall-following-sysadmin-module-upgrade/72799
It is a new fresh built server.
It also has FreePBX CM SysAdmin Pro 25 Year License
What shall I do to get Intrusion Detection to start?