I don't want you to feel short changed but what plays on USB does not mean it will over the network or DLNA. For now that only confuses folk new to this. But the reason are pretty simple. Ready? I'm going to sum it up in one word. The word is "patents."
So while some DivX file may play over USB it may take another patent fee to play it over the network.
Folk are running into this a lot and it's a shame the makers are not forthcoming about it.
Fix? Encode the files to what works as unlike a PC this is more like a Toaster. You can't load up other decoders.
I have a Panasonic DMR-BWT800GL blu ray player and when I try to read a video file from my Thecus NAS, it simply says "Cannot Play". Funny thing is it works OK with mp3 files. When I try the same video file from USB, it plays it fine.
Is anyone able to give me a prod in the right direction to get it working?