Background: I teach 12 STEM classes and I have 28 bluetooth keyboards (one class set). Every student has their own iPad. I have labelled each keyboard with a unique number from 1-28. The keyboards are Logitech K380s.
I've spent a long time in each class' first lesson to pair each student with a numbered keyboard with the aim that for the rest of the year, the students in each class just walk into the classroom and automatically connect with "their" keyboard. With this approach, each keyboard is paired with 12 separate iPads, but only connected to one iPad at a time.
However, in the second week of lessons, it looks like many iPads are not connecting. The iPads have kept the pairing in their list of previously paired devices, but the keyboards won't connect. I have triple confirmed that each student has correctly selected their pre-assigned and previously paired keyboard.
What have I missed?
Best Answer
Bluetooth remains paired even when you power down. You actually have to specifically unpair the device, or it will try to pair with the last paired device!
So, before the students leave, they should unpair their keyboards, shut them off so they don't pair again, and the next class should be able to pair without too much problem.
Like I use a earpiece/mic with bluetooth, so I don't need to hold the phone up to my ear. If I shut both devices off, when they power back up they're paired.