Hello folks. We setup a k3s single server in the lab using the online instructions and now trying to access its API from a remote windows machine using postman. Can someone please point us to the right direction. We are getting 403 forbidden errors when we try.

Trying to access what? The Kubernetes apiserver? A service deployed to the cluster? How are you accessing it? 403 suggests that you are not authenticating properly, what are you using for auth? Why are you using postman?

Trying to access The Kubernetes apiserver to configure it from an external system

Ok so how are you authenticating? The default admin kubeconfig uses client cert auth.

I found some instructions here "https://rancher.com/docs/k3s/latest/en/installation/kube-dashboard/" to create a service account. I generated a token to authenticate myself. It was working yesterday as follows: "curl -k -XGET -H "Accept: application/json" -H "Authorization: Bearer $TOKEN" https://10.10.10.185:6443/api/v1/pods -k". Today, it doesn't anymore. Is this the recommended method?

Possibly a dumb question, but do you still have $TOKEN set in your shell?

I typed it that way for the channel. I use the real token value in my curl