Today, I restored my DNS-323 to Factory Default Settings. And then, after reapplying my own settings, I enabled the uPnP AV Server on my DNS-323 again. But still no luck ! I can see mp3 tracks on my Popcorn Hour but no FLAC tracks :-(
As far as I know I don't have the choice to choose between different uPnP protocols either on my DNS-323 nor on my Popcorn Hour.
Furthermore, I tried to share only one FLAC album to make it simpler to analyze. And I actually noticed that my FLAC tracks are actually seen but are NOT indexed by tags (artists, albums...). They are all accessible via the 'Other' tag, which is useless of course. AND if I play one FLAC track after browsing to it via the 'Other' tag then nothing happens ! My Popcorn Hour won't play it, whereas it plays it very well when I access it directly from network browser of the Popcorn (not the uPnP protocol).
So, I don't know what to do next :-(
Do you think it is an issue on the DNS-323 side or on the Popcorn Hour side ?
Do you confirm me that your own FLAC tracks get properly indexed and seen by tags (articts, albums...) ?
I tried accessing my DNS-323 uPnP from my Archos 605 but it behaved exactly the same way than my Popcorn Hour does.