New install "404 page not found"

My latest 2 curl install would give me 404 page not found on accessing the main cni ip on Ubuntu default on 10.42.0.1.
I tried changing the cidr 10.44.0.0/16 with a new installation, and I have an http website responding from a helm installation, but can’t access rancher Dashboard with either http or https.
What am I missing?

this is real

Ok, I should install rancher on k3s first.