Ethernet streaming and occasional white noise on Windows

[AlexS]

Hello,
I have the same "white noise problem" with foobar 2000. Devialet first believed that the problem was with JRiver, but it is not. Maybe Wasapi? I tried with 2 computers, Windows 7 32 bit, and Windows 8.1 64 bit, same problem (bitperfect on, 192 kHz flac files, white noise heard after 30-40 minutes). At the moment Devialet has no real solution.

I also use Foobar2000, so the player has little to do with it.
I tend to think the problem is not with WASAPI per se (although it may be exacerbated by it), but with AIR. The variation encountered by @Confused is very special indeed and my own experience appears to corroborate it: I think it's enough to change a setting in AIR (@Confused changed the WASAPI mode; I'd once changed the buffer length), and if you don't restart AIR, you'll soon get the white noise.