Not a network engineer.
This ap works perfectly, although the video didnt work, I figured it out by the guy who included the system preference instructions on his review. Just know that your computer ID or username are case sensitive, also when adjusting the volume through this ap, you wont see the adjustment on your MacBook, but youll hear the difference in a fraction of a second. Precisely what I was looking for and no frills or ads, very simple!
Tvalenti about
Volume Control for Mac