De una review que comparan streamers para mac dicen que es complicado compartir en red con mac (ellos lo hacen con un NAS):
Mac-based sharing was a different story, with lots of error messages and cases where the streamers would see our test Mac but not actually be able to connect to it. A UPnP server is usually your friend here, but an added point of failure: none offer much, if anything, in the way of manual-based help.
Best media streamer for Mac: 6 reviewed | News | TechRadar
Por cierto, dan ganador al popbox.
Parece casi misión imposible encontrar un streamer que se entienda bien con OS X, y por lo que he probado el DLNA tampoco va muy bien