Windows vagrant: H-Wiki: WebSocket connection to 'ws://0.0.0.0:3400/' failed: Error in connection establishment: net::ERR_ADDRESS_INVALID

Hi, I tried the tutorial, the rad tool and now the H-Wiki
and I always end up unable to connect to the backend.

When running h-wiki backend with:
sim2h_server
holochain -c conductor-config.toml

and the frontend with: npm start

My browser starts and I got this message:
websocket.browser.js:43 WebSocket connection to ‘ws://0.0.0.0:3400/’ failed: Error in connection establishment: net::ERR_ADDRESS_INVALID
WebSocket @ websocket.browser.js:43

I must say that from a backend point of view, I see no error and everything looks fine.

I’m running on windows and vagrant, I tried to config my vagrant to forward ports like so:
config.vm.network “forwarded_port”, guest: 8888, host: 8888
config.vm.network “forwarded_port”, guest: 3400, host: 3400

It really looks like it’s a communication problem between my browser(localhost) and the vagrant shell.

But I can’t find a solution, anyone else on windows here had run into this problem ?