I tried replacing my AirPort Extreme (latest-gen, 802.11ac, tower design) with a Google WiFi mesh setup (3 devices), but ran into issues getting WiFi Calling (AT&T) to work consistently, so I've (temporarily) given up on that, and switched back to my AirPort Extreme. I wanted to improve WiFi reception in some far corners of my house, though, so I bought a 2nd (used) AirPort Extreme (latest-gen) today. I hooked it up to ethernet, powered it up, and used my iPhone's Settings/WiFi screen to find it and configure it. It does some sort of auto-configuration of it for you that way, and within a few minutes, it was up and operational. So far so good. FYI, my 1st AirPort Extreme is named "AirPort Extreme" and my 2nd one is named "AirPort Extreme - Office". Also, my 5GHz network is named the same as my regular network, but with "(5GHz)" appended to the end of the name (so, if my 2.4GHz network is named "My Network", then my 5GHz network is named "My Network (5GHz)". But something is wrong... 1) In both the AirPort Utility app for iOS and the app for OSX, it shows both of them, with the 1st one connected to the Internet, and the 2nd one connected to the 1st one. If I tap/click on the 1st one, it doesn't show any wireless clients connected to it. If I tap/click on the 2nd one, it shows 16 clients, several of which are located much closer to the 1st AirPort Extreme. Is this just a bug in the app, or do I have something configured wrong? 2) This might be completely unrelated, and is probably more of a question for Amazon Echo Spot owners, but my Echo Spot in my office (just a couple of feet away from the 2nd AirPort Extreme I now have) connects to the 2.4GHz version of the network, but fails to connect to the 5GHz version of the network. What's more, the Echo Spot is showing 4/4 bars for the 2.4GHz network, while fluctuating between 3-4 bars for the 5GHz network, which makes me wonder if it's trying to connect to my 1st AirPort Extreme which is farther away. Even odder, I tried "Forgetting" the 2.4GHz network altogether on the Echo Spot, rebooted it, and then when I went to connect to the 5GHz network, it came back with the message "WiFi Connection Failure" under the 5GHz network option, but connected to the 2.4GHz network (even though I told it to forget that network). I even went into my Amazon account and had it forget my WiFi passwords there (this is a convenience feature that Amazon has where they securely store your network passwords so that if you buy another Echo device, it can connect to them without you having to type in the password on the Echo Spot).