How can I view detailed information on a WiFi connection on an Android device? Background / Purpose
I'm setting up a wireless network in which a Raspberry Pi works as the router &amp; access point (following Adafruit's Guide). After getting it all set up, I tested the network by connecting my Samsung S6 to the new wireless network (having disabled mobile data, of course), and successfully accessed the internet (and double-checked by watching the RasPi's syslog). 

I'm having trouble connecting other devices to the network, and I think it may be due to settings or parameters I'm using but known nothing about (pairwise (TKIP?), proto (WPA2?), etc.). 

I'm not asking about those settings &amp; such, I know that's a question for a different forum -- rather, I want to know if it's possible to get detailed information from Android about the WiFi network it's connected to. Perhaps through the developer/debug mode, or using an external tool or application connected to or installed on the Android device?
From most (all?) Android handsets you can dial *#*#4636#*#* which will display a wifi menu with lots of detailed information regarding the wireless status.