The problem of disconnecting the Mac mouse can be solved by the following methods: 1. Check the battery level and ensure good contact, and replace the new battery if necessary; 2. Reset the Bluetooth module, cancel the pairing and reconnect; 3. Check signal interference, adjust the receiver position or turn off nearby Bluetooth devices; 4. Update macOS or install a third-party mouse driver; 5. Turn off the Bluetooth power saving option in the energy-saving settings and adjust the mouse parameters. If the above steps are invalid, it may be that the Mac Bluetooth module is faulty and needs to be sent for repair.

It's really annoying that Mac mouse always disconnects. This may be caused by occasional problems with Bluetooth mouse, wireless receiver mouse, or trackpad. Don't rush to change the equipment, first see if the following methods can solve the problem.

Check the battery and power supply

If you are using a wireless mouse, especially Bluetooth models, insufficient battery is one of the most common reasons . Many mice will be intermittently disconnected or even fail completely when they are about to run out of power.

• Confirm whether the battery is installed in reverse and whether the contact is good
• If it is rechargeable, try changing the data cable or changing the charging port
• You can see the current battery power in "System Settings>Mouse" on your Mac (if it supports display)

Sometimes it is still a little power, but it just can't be connected. At this time, it is most direct and effective to try a new battery.

Reset the Bluetooth module

Unstable Bluetooth connection is also the main reason for the intermittent mouse. You can try manually resetting the Bluetooth module:

1. Open System Settings > Bluetooth
2. Find your mouse in the device list and click "X" to cancel the pairing
3. Hold down Option Shift and click on the Bluetooth icon in the menu bar
4. Select "Debug > Remove all devices"
5. Re-pair the mouse again

This method is suitable for most Bluetooth peripherals problems, not just the mouse.

Troubleshooting interference and drive problems

Sometimes it is not a problem with the mouse itself, but a interference with the surrounding signal or system conflict . for example:

• The mouse receiver is plugged in to USB 2.0 and 3.0 interfaces.
• The proximity of routers, microwave ovens and other equipment may cause wireless interference
• Some drivers are incompatible after macOS update

You can try the following:

• Change the receiver to a USB port and try to avoid the metal housing interface
• Turn off other nearby Bluetooth devices to test
• Update macOS to the latest version, or roll back to the stable version

If you are using a third-party mouse, such as Logitech and Razer, it is recommended to download the corresponding drivers on the official website. Some default functions require additional software support.

Check system preferences and energy-saving settings

macOS sometimes automatically turns off idle Bluetooth devices in order to save power.
You can check if there is an option like "Switch Bluetooth to save energy" in System Settings > Energy Saving and turn it off.

In addition, confirm whether there are any abnormalities in the pointer speed and tracking speed in "System Settings>Mouse". Although it will not directly cause disconnection, the degree of coordination will affect the user experience.

Basically, these common causes and solutions are all about them. In most cases, as long as the battery, Bluetooth, and interference are checked, the mouse should be able to return to normal. If you accidentally change several mouse points and still disconnect, it may be that there is a problem with the Bluetooth module of the Mac itself, so you have to consider sending it to repair.

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