Cannot add nodes to new cluster


I installed rancher server 2.5.5 on a windows 2010 like this walkthrough:

Added an extra ingress rule so that it can ber reached from lan with url. Thta works and I can login rancher server.

From this instance I want to setup a new cluster and add 4 bare metal nuc’s as nodes from that lan network. The nods are correctly installed with Ubuntu server and docker. When I execute the command that Rancher server gives me to run on the nodes (etc, control plane and worker) nothing happens in Rancher. The nodes are not added.

On the node, everything seems fine. The dockers are running smoothly.

How should I proceed to find out what is going wrong? I’m fairly new to rancher and this way of spinning up clusters.