Ethernet streaming and occasional white noise on Windows

[Confused]

I have just experienced the issue again. Running mainly iTunes, but occasionally switching to Jriver, all was fine for about 4 hours. Then the white noise issue. Disabling then enabling AIR, all was ok for 30 minutes, then white noise. Doing the same thing again, all was ok again for only 30 minutes, this time with the mixture of white nose and music.

So I think I am seeing a pattern, from a cold start up of the PC, you can get a long session, I have done this twice recently. After this, maybe only 30 minutes. The pattern can be different if you multi task on the PC. I'll keep watching this!