Thanks Dave, that is always the first thing I look at. But in this circumstance, it is not waking up, but not being allowed to sleep.
I am going to track down why the Realtek entry is there. It may be related to my NAS where I store music. If it is, I don't understand why the request would be active if no music was actually being played. But I have been playing around trying to see new things in Windows 10 and I may have set something up without realizing it.
I just noticed on my other system, I have a audio listing for my webcam which contains a microphone. Since I am using a headset with a microphone on the original system, maybe it is referring to that. The streaming might not be to a network system, but internally... I will have to check, although I have almost gotten Cortana to behave correctly.
I am still using the basic Windows 10 drivers on both of these systems so that might effect how devices on the different systems are configured.
I see you have the LM version of your Network Adapter. I had a heck of a time in Windows 8 with one of those and whether it was shows as a V or as an LM. I think that was on my Z77 motherboard which I am not currently using. That actual device designation may be different though, I think mine had a 259 for part of the model.