K3s: Remotedialer proxy error when using Google Cloud VM as k3s server

[ashrafgt]

k3s version v0.9.1 (755bd1c6)

After setting up a k3s server in a Google VM and adding a TCP firewall ingress rule for port 6443, m
While attempting to add remote agents to the k3s cluster, I get a connection timeout with the errors:
Failed to connect to proxy error="dial tcp 10.156.0.2:6443: connect: connection timed out"
Remotedialer proxy error error="dial tcp 10.156.0.2:6443: connect: connection timed out"

Steps to reproduce the behavior:
1- Create a GCP ubuntu VM, reserve a static external IP
2- Install then start k3s without agent
curl -sfL https://get.k3s.io | INSTALL_K3S_EXEC="--disable-agent --write-kubeconfig-mode 644 --tls-san xxx.xxx.xxx.xxx" sh -
2- Add a TCP firewall rule for port 6443
3- Install k3s on a remote machine and connect to the cluster via token
curl -sfL https://get.k3s.io | INSTALL_K3S_EXEC="--write-kubeconfig-mode 644" sh - sudo k3s agent --server https://xxx.xxx.xxx.xxx:6443 --token $NODE_TOKEN

What could be causing the timeout and could you please share possible solutions.
Thank you.

[vishuPPatel]

same issue i face.

Jan 29 11:54:30 raspberrypi k3s[1727]: time="2020-01-29T11:54:30.545897944Z" level=error msg="Failed to connect to proxy" error="dial tcp 10.160.0.53:6443: connect: con

Jan 29 11:54:30 raspberrypi k3s[1727]: time="2020-01-29T11:54:30.546087030Z" level=error msg="Remotedialer proxy error" error="dial tcp 10.160.0.53:6443: connect: conne

Jan 29 11:54:35 raspberrypi k3s[1727]: time="2020-01-29T11:54:35.546418994Z" level=info msg="Connecting to proxy" url="wss://10.160.0.53:6443/v1-k3s/connect"

Please fixed it this issues.
Thnaks

[ndjhartman]

Facing the same issue, was this ever resolved?

[nielsole]

Related, but didn't solve all my issues: https://github.com/rancher/k3s/issues/214#issuecomment-482388852

After setting --advertise-address x.x.x.x(public IP) on the server, the node registers and becomes healthy for me