Not sure what you're referring to here, Play to feature? Where is that, on the 809 or the PC? Assume it's on the PC.
Are you talking about doing install on my PC? I have already given the 809 permission in my WMP11, I've been streaming to my 809 via WMP11 for months. It's just recently when I did the latest firmware update it's that I am not having problems as described.
On my receiver, I go to NET, then click on DLNA, and my list of media servers is listed. I click on WMP11 and stream music. I am doing this on my receiver, not the PC. Is the Play To Feature work the opposite way, I am doing this on the PC, sending to the 809?
Play to feature is in the wmp. If you right click on any mp3,, it should give you they option of sending the song directly to receiver.
When I say install, I mean in PC find 809 in the network section, you right click to choose install. Windows will search drivers and install 809.
basically your trouble is you are not able to play beyond 15 min by browsing thru receiver/net/dlna.
Try doing a factory reset in receiver. And unplug receiver from power for few minutes.
In windows under network share reduce to 40 bit encryption instead of 128.
Lastly I suggest choose wdtv and play via wdtv, that's what I do, though my windows share works fine. It took me good 3 Weeks to get everything to work correctly.
Try bubble upnp app in Android along with wdtv, you will like it.
Try also choosing other dlna programs, twonky, servioo, tversity etc. does the same thing as wmp11 and more. Twonky.is most stable imho