• Low battery levels
• Moving the receiver from one USB port to another
• Moving the receiver to another computer
• Plugging the receiver into a USB hub or other unsupported device such as a KVM switch (NOTE: Your receiver must be plugged directly into your computer.)
• Using your wireless keyboard on metal surfaces
• Radio frequency (RF) interference from other sources, such as:
  • Wireless speakers
  • Computer power supplies
  • Monitors
  • Cell phones
  • Garage door openers

Before connecting your keyboard:

1. Fix or rule out the potential problems listed above.

2. Turn your computer on.

3. Make sure you have fresh batteries in your keyboard (see Battery information for your keyboard for instructions).

4. Plug the receiver directly and securely into a working USB port on your computer.

Reconnecting your keyboard

NOTE: Connect only one device at a time.

1. Download and install the latest software from the Downloads page.

2. Launch the connection utility by double-clicking the "ConnectionUtility.exe" in the folder "C:\Program Files\Logitech\SetPointP"

   OR

   From the "Run" command, press the Windows key + R, type "C:\Program Files\Logitech\SetPointP\ConnectUtility.exe" and press Enter.

3. Click Next at the bottom of the Welcome screen.

   NOTE: If your USB receiver is not plugged in, the software will prompt you to plug in your receiver now.

4. Follow the on-screen instructions to turn your keyboard off and then back on.

   

   NOTE: The K240 keyboard has no ON/OFF switch. Instead, inserting the batteries will begin the connection process.

5. When your keyboard is detected, you'll see a confirmation message. Click Yes and then Next. Otherwise, repeat from step #4.

   

6. Click Finish to exit the Logitech Re-Connect Software. Your keyboard should now be connected.

   

If this solution doesn't work after a couple of attempts, restart your computer and try the reconnection process again.

Keyboard frequently stops working

• Keep other electrical devices at least 8 inches (20 cm) away from the Unifying receiver
• Move the mouse or keyboard closer to the Unifying receiver
• Move the receiver to a different USB port on your computer