My new Mac mini pro struggles to connect to my Bluetooth apple keyboard and mouse. It connects sometimes and doesn't at other times. Restarting doesn't help. I've had to use a wired keyboard and mouse to be able to get the bluetooth devices to reconnect.
Mac mini, macOS 13.4
Poorly shielded high speed USB-C cables, USB-C devices and Display cables in close proximity or in between, can cause Wi-FI and Bluetooth interference..
see > Resolve Wi-Fi and Bluetooth issues caused by wireless interference - Apple Support
+1 on den.thed's suggestion and link to that reference article.
I find that if I lay my iPhone next to my BT mouse, keyboard, and Magic trackpad, I can count on all three disconnecting at the same time. If I move the phone an arm's-length away, no more issues.
My new Mac mini pro struggles to connect to my Bluetooth apple keyboard and mouse.
