MPD httpd output

Hello everybody,

As a happy Volumio user I would like to to stream MPD over http…
After configuring mpd.conf for hhtpd output over port 8000, I am trying to connect , but I get the “connection refused” error on a remote pc. I can reach volumio webgui , but no streaming.

After many internet searches, I cannot solve it. Does the linux os block the port?

Many many thanks if someone knows what the problem is.