Trying to dip a toe into rancher-managed kubernetes and I'm struggling. Some notes: • I'm completely new to kubernetes and rancher. • I've tried to ask GPT4 and the answers it has given me don't appear to work. • Rancher itself is running inside a docker container behind traefik on a single node docker server • In the same ESXi hardware, I ahve 4 more nodes (master 1, 2, 3, and worker 1) that have been set up. Each node has an assigned static IP address from an OPNSense router which handles DHCP I went through the Rancher UI to create a cluster. The cluster has been up for 7 hours now, and currently has the error message

Non-ready bootstrap machine(s) custom-a2f94dac52de and join url to be available on bootstrap node

This is both for K3s and RKE2 Googling around suggests it's a DNS issue, but I'm struggling to figure out how the DNS lookups work and how to correct them. Can anyone offer guidance?