4th generation Apple TV not detected on my Macbook Pro 17 or Macbook Air
I can't connect to my 4th generation Apple TV on either my ancient Macbook Pro 17, (running OS 10.11.6) or 2-year old Macbook Air (running the latest Mac OS). Both laptops detect my neighbor's Apple TVs and my iOS devices will connect to my 4g Apple TV. It's set to allow all connections on my network, but my laptops won't detect it. What gives?
MacBook, Mac OS X (10.6.8)