Directly Connect to the Docker API Remotely

I am trying to get Portainer to connect to the API on a remote host and am not having any luck. Portainer is running on a docker host and connects to the local Docker API without issue. If I add a new endpoint, select “Directly Connect to the Docker API”, enter 192.168.1.100:2375 for endpoint URL, and click add endpoint, I get the following error:

“Failure Get http://192.168.1.103:2375/_ping: dial tcp 192.168.1.103:2375:connect: connection refused”

I do have “Expose daemon on tcp://localhost:2375 without TLS” enabled on the remote host and I did restart Docker after enabling.

Does anyone know if this feature is working or if there are additional steps required to make it work?