I've been using Media Center for several years to play FLAC files over DLNA (I usually select the album in Media Center and push it to the renderer, rather than using the renderer to pull the audio from the server). I actually have two renderers: a Naim ND5-XS in the bedroom and a Yahama CX-A5100 pre-amp in the living room. But then ... I recently bought a new laptop (MS Surface Book, running Windows 10). I still see the two units in my Playing Now list. And I can select either of them as a zone to play to. But when I select an album and try to send the audio to either renderer, nothing plays. Each renderer is acknowledging the connectgion: for example, on the Yahama the pre-amp does turn on and change to "Server" as the source, and on the Naim it returns a message of "Waiting" to Media Center. So I know that the round-trip Ethernet signal is working. In both cases, the renderer is showing "No server" on its display, so Media Center must not be sharing its server.
Note that I can send music to the local player (i.e., not using DLNA) with no problem.
Is there some step I forgot to do? The Options dialog is showing the Access Key. And the server is listed as "Audiophile 12-bit DAC."
Any assistance to get my system running again will be appreciated.
John