MacBook Pro Airplay to AppleTV timing out

Hi friends,

I subscribe to a few PDF photography magazines that I like to stream from my MacBook Pro to my 4K AppleTV for reading. In doing so, I find that after a few minutes, the Airplay connection drops and I have to reestablish it. The devices are no more than about 6 feet from each other, and the screen saver isn’t ever active on the MBP. Any idea what’s causing the dropped connections? If there’s a timeout that’s expiring, is there any way to change it? (I don’t know of one, but thought I’d throw the idea out there because … who knows!?)

Cheers, and thanks!