Ping vm in OpenNebula sandbox from w10 host


I have been trying to fix this “problem” for 5 days now, no luck (I guess i’m not really good at networking…).
First, I installed Front-End + KVM Node on 2 VMs but I didn’t know how to assign IPs to vms.
I ended up downloading OpenNebula sandbox, which the vms get assigned ips

What I want to do is ping the vm from my windows 10 host machine.
I tried creating a Host-only adapter with ip and create a bridge br1 then assign it to the vm template but it seems to not work as I can’t even ping the vm ( from inside the sandbox.

Thank you.