I have found that my other dnla enabled devices can see the folders and content on the humax but they cannot play it due to one of two issues,
a, the humax does not decode the .ts files while other devices request them
b, the other network devices cannot decode the files they pull from the humax on the fly. I believe there is software i can put on the box to rectify this but i am waiting until my box is out of warranty before trying it.