What's your browser? The server is using an old TLS version which is no longer supported, and some clients will try https and fail there and not try http.
Edge first tries TLS and comes back with: "SSL handshake error '-1' sslerr='1' sslerrdesc='error:1425F102:SSL routines:ssl_choose_client_version:unsupported protocol' sslerrfunc='607' sslerrreason='258'"
Setting to http:// results the the above error, along with "httpd/3.30A Server at www.mirbsd.org Port 80" - I think that the target itself is blocking me.