Understand what's wrong with a Docker EE instllation and pinging the host / other containers

Hello,
I’ve spent all yesterday trying to figure out what’s wrong with a Docker EE installation under Windows 2019. The situation is the following, have installed docker EE, applied Linux lcow since I need to run Linux container and when I try to ping the host.docker.container or another container, I receive an error telling me that it was unable to ping. This machine is an HP Server, a physical machine just to intend.

I’ve done my test before on the same Windows Server edition on a Hyper-V machine and the container resolution/ host.docker.internal resolution works great…I’ve done the same exact steps. The only difference I notice is that one is a virtual machine, the other one not… how can I dig and spot this problem? right now we’re running Docker Desktop but I would use the Docker EE…

Where can I start looking, to understand what’s wrong with the configuration?

Thanks