Late 2014 Mini Keeps Dropping Bluetooth

Hrothgar

macrumors 6502
Original poster
Mar 11, 2009
402
8
New York
Ever since the Catalina update, my Mini is dropping my bluetooth keyboard and mouse. I've tried a bunch of fixes I've seen on the Internets (forgetting the device and re-pairing, etc.). They may work for a few weeks, but then it happens again. When the mouse cuts out, there's nothing I can do except restart the computer. It's very annoying. I've got a logitech keyboard and mouse. Although I also have a Magic Mouse and the same thing happens.

Any suggestions for how to fix this?

Catalina really slowed down my computer.
 

chrfr

macrumors G3
Jul 11, 2009
8,583
2,766
Ever since the Catalina update, my Mini is dropping my bluetooth keyboard and mouse. I've tried a bunch of fixes I've seen on the Internets (forgetting the device and re-pairing, etc.). They may work for a few weeks, but then it happens again. When the mouse cuts out, there's nothing I can do except restart the computer. It's very annoying. I've got a logitech keyboard and mouse. Although I also have a Magic Mouse and the same thing happens.

Any suggestions for how to fix this?

Catalina really slowed down my computer.
Do you have a USB 3.0 device attached to your computer? Those often cause interference with Bluetooth devices. If you do have one, try repositioning the USB device.
 
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chrfr

macrumors G3
Jul 11, 2009
8,583
2,766
I had that happening to mine. I reset the P-Ram and it fixed it.

Also CHRFR also had a good observation- USB 3 devices drawing a lot of I/O, slows down the USB- even a USB mouse- shouldn't affect BT.

https://support.apple.com/en-us/HT204063
The Bluetooth/USB 3 issues aren’t a matter of bandwidth but rather simply radio interference. Cables and devices which are inadequately shielded effectively “jam” the Bluetooth radio signal.
 

Fishrrman

macrumors P6
Feb 20, 2009
18,199
6,076
Best "solution":
Don't use bluetooth to connect to mice and keyboards.
That's intended to be a serious answer.

Use a wired keyboard.
For a wireless mouse, the best solution is a Logitech wireless mouse using their "unified receiver" by which to connect (NOT bluetooth).
 

Scorned

macrumors member
May 20, 2016
43
17
NJ
The Bluetooth/USB 3 issues aren’t a matter of bandwidth but rather simply radio interference. Cables and devices which are inadequately shielded effectively “jam” the Bluetooth radio signal.
I kind of went into two directions in that one.

Resetting the PRAM solved my BlueTooth issues.

The USB 3 issue is separate but does affect USB in a slow/glitchy way.