There seems to be a connection between my browser and the disconnection.
Just prior to posting my initial message to this forum, I ran yawcam and left it running with no other applications opened/running in the background. Within ten minutes after starting the program, I experience the disconnect error.
I then opened my web browser and posted my own experience here. I left my browser open and restarted yawcam, got the camera working and then walked away for 1.5 hours with no disconnect problems. When I returned to my laptop, I closed the browser, leaving yawcam running in the background. I then left my laptop for a few minutes. Within moments after closing the browser, my cam disconnected.
Thinking that it may be related to my browser, I shut down yawcam, opened my browser and then restarted yawcam. I then left my laptop alone for the next three+ hours. Yawcam performed flawlessly during that period without fail.