If your mouse isn't working, the problem is likely a lost connection. The connection between the mouse and the computer can be lost for several reasons, such as:
- Low batteries
- Moving the USB receiver from one port to another.
- Moving the USB receiver to another computer.
- Plugging the USB receiver into a hub or other unsupported device such as a KVM switch (NOTE: Your receiver must be plugged directly into your computer).
- Using your wireless mouse on metal surfaces
- Radio frequency (RF) interference from other wireless devices, such as:
- Wireless speakers
- Computer power supplies
- Cell phones
- Garage door openers
Before connecting your mouse
Fix or rule out the potential problem sources listed above.
Turn your computer on.
Insert a fresh battery in your mouse (see answer 49369 for instructions).
Turn on your mouse.
Reconnecting your mouse
Download the correct version of the Logitech SetPoint mouse and keyboard software from the M186 Downloads page.
Press the Windows key with the up arrow to Run.
Type C:\Program Files\Logitech\SetPointP\ConnectUtility.exe and press Enter.
Follow the on-screen instructions to turn your mouse off and then back on.
When your mouse is detected, you'll see the confirmation message below. Click Yes and then Next.
Click Finish to exit the Logitech connection software. Your mouse should now be connected.
If this solution doesn't work after a couple of attempts, restart your computer and try the reconnection process again.
If your mouse frequently stops working and you keep having to reconnect it with the USB receiver, try these suggestions:
Keep other electrical devices at least 8 inches (20 cm) away from USB receiver.
Move the mouse closer to the USB receiver.
Move the receiver to a different USB port on your computer.