[ovirt-users] How to reset network on all cluster members (controller and host) to defaults for cleans start?

I have a new Ovirt 4.4.5 cluster consisting of a controller and a single host, both running on centos 8. I believe I have messed up my network configurations by using a mix of oVirt and nmcli functions to try to resolve problems. Is there an easy way to reset everything on the controller and host machines to get a clean start? Or do I need to start from scratch and re-install centos. Thank you in advance. David Johnson