Hello Forum! So I downloaded the Airport Utility update 6.3.1 (631.4) today. I have three Airport Extremes in my house. One 6th Gen AC Extreme (newest) One 5th Gen n Extreme. One 4th Gen n Extreme. The new Airport Utility does not recognize my "6th Gen AC Extreme". The funny thing is that the "6th Gen AC Extreme" is the one connected to the internet directly. The other Extreme's merely extend the range of my signal and act as hubs for other devices to plug into the internet via ethernet. Fortunately my household internet still works even if Airport Utility can't see it. I am afraid to mess around with it since my internet is currently working as is.... Any ideas what my problem is? Also I can "see" my 6th gen Extreme when using my iPhone or iPad Airport utility... it is just the desktop version of Airport Utility that is having problems.