Using RLlib Dashboard on Windows

Severity Medium: My code runs but I have no idea what’s going on.

Hello, I’m new to RLlib (and Ray in general). I’m locally running RLlib on my Windows computer and I’m trying to view the training progress via the dashboard but I get a “connection refused” error. I saw some posts from 2021 that Dashboard doesn’t work on Windows yet. Is that still the case? What are the known workarounds?

What ray version are you using?
Did you install the “ray[default]”?

Last time, when I tested ray dashboard on 2.3, it worked fine.

I got a similar issue.
I go now even know what the dashboard looks like yet.

Be aware that you do not run the local mode, i.e. ray.init() is the right way to go. The console will print then also the local host address to view the dashboard, e.g.

2023-05-14 18:07:49,598 INFO – Started a local Ray instance. View the dashboard at

In my case, ray.init() does not work.

I am not sure if the link is called correctly, so let’s be more precise and call explicitly: