Error creating machine: Error running provisioning: Unable to verify the Docker daemon is listening

Just installed Rancher 2.3.6, deploying to vSphere using Node Template, boot2docker ISO (
It creates the vm just fine, but errors trying to validate docker is running.

If it matters, the vm is on a private IP and needs Proxy configured, I set HTTP_PROXY and HTTP
S_PROXY in Engine Options>Engine Environment.