Connect to volumio through wireless adhoc network


I know this topic has been discussed everywhere, but still I was usable to find a solution.

I’ve been able to configure the wifi port of my raspberry in ad hoc mode, and I’ve been able to connect to it from my laptop and ping it.
But I cannot access volumio.local, nor through webUI nor through ssh.

I guess there’s something missing in the wlan configuration, but I cannot figure out what.