I got this message this morning, too. Last night I added a new D-Link WAP, and of course, it picked up my Dell laptop with a webcam.
This morning it kept popping up, like every minute or two (I was clicking ignore once). So I turned off the Dell. That stopped the messages. Turned the Dell back on (webcam disabled) and the message came within seconds. So I clicked ignore forever.
So, at least for me, it was the Dell laptop, not the D-Link WAP.