MacDebug

Verified for macOS Tahoe 26.2

How to Fix Bluetooth LE Device Disconnects in macOS Tahoe 26.2

Symptom: Bluetooth Low Energy (LE) peripherals, such as smart mice or MIDI controllers, frequently disconnect and reconnect on macOS Tahoe.

TL;DR fix

Start with Fix 1: Reset the Bluetooth Module. If the issue persists after that, try Fix 2: Remove the Bluetooth Plist. Full Terminal commands and step-by-step instructions are in each section below.

Why this happens

Tahoe's updated Bluetooth stack (blueid) has aggressive power-saving intervals that can prematurely drop connections with LE devices.

Recommended Troubleshooting Tool

Before proceeding with manual fixes, we recommend using OnyX. The preferred tool for deep system maintenance and resetting the macOS Bluetooth stack.

Fix 1: Reset the Bluetooth Module

  1. Open Terminal.
  2. Run the Bluetooth reset command:

sudo pkill bluetoothd

  1. Turn Bluetooth off and on from the Menu Bar.

Fix 2: Remove the Bluetooth Plist

  1. In Finder, go to /Library/Preferences/.
  2. Delete com.apple.Bluetooth.plist.
  3. In Terminal, run:

sudo killall bluetoothd

  1. Reboot your Mac.

Tested and documented by the MacDebug team — about MacDebug. See also Fix macOS "Bluetooth Audio" Lag, Fix macOS "Bluetooth Battery" Not Showing, or browse all guides on macdebug.