Slightly off topic - I work at a music festival as a stage tech sometimes. One time on this small festival, in the middle of the night, I was enjoying a after work beer and a bartender came up to me and asked 'you're the sound guy right? We have trouble connecting with the Bluetooth speaker in the bar.' - not really my expertise but I'll have a look, sure.
It was only because we were standing next to each other checking the Bluetooth devices on our phones and it was on different spots in the list on the respective phone that I realized that the device was named 'not connected'.
