I have the latest Airport Extreme 802.11ac and it has just started making a whirring noise and temporarily disconnects, then stops and reconnects and repeats... I reset/rebooted/upgraded the firmware to no avail, And got a message in the Airport App that said it "might be overheating"? It's conveniently out of warranty. It's sits on an open shelf with plenty of circulation -- nothing near it. Is there a way to fix this issue, or is it just trash and a wasted $200? I can walk over and buy another one, but is that throwing good money after bad if it's going to poop out in 2 years?