Connecting Apple wireless keyboard
Just upgraded 2020 Mac mini to OS 12.3. Now trying to connect older Apple Wireless Keyboard via BT. Little green power light on bottom of keyboard blinks, Bluetooth prefs sees the keyboard, I click the connect button, it grays out, the gearwheel spins, but nothing else happens. 30 seconds later the connect button goes active again. I've turned the keyboard power off/on, turned BT off/on, restarted the computer. What's going on?