Registry is up and running and accessible from browser/curl, but docker push fails

[InputUsername]

Summary

The title, basically. The registry is up and running and I can access it with curl:

$ curl http://127.0.0.1:32000/v2/
{}

But docker push fails:

$ docker push 127.0.0.1:32000/myimage
docker push 127.0.0.1:32000/myimage
Using default tag: latest
The push refers to repository [127.0.0.1:32000/myimage]
Get "http://127.0.0.1:32000/v2/": dial tcp 127.0.0.1:32000: connect: connection refused

I am using Docker Desktop on Fedora 39. I've followed most troubleshooting steps from the docs and other issues (e.g. adding insecure registries, disabling SELinux, adding firewall rules), to no avail. I am however able to push using my machine's IP address.

Sorry if this issue is not relevant, I just don't know how to debug it further.

What Should Happen Instead?

I expect the push to work, since the registry seems to be running and accessible.

Reproduction Steps

1. Build image, tag as http://127.0.0.1:32000/myimage
2. docker push http://127.0.0.1:32000/myimage

Introspection Report

Can you suggest a fix?

Are you interested in contributing with a fix?

No (I'm happy to help but I wouldn't know where to start).