• Keyboard is not working
• Mouse is not working
• Keyboard or mouse frequently stops working

Keyboard is not working

If your MK320 keyboard isn't working, the problem is likely a lost connection. The connection between the keyboard and the Unifying receiver can be lost for several reasons, such as:

• 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 reconnecting your keyboard:

1. Try to rule out potential problem sources that might be affecting your keyboard, including those listed above.

2. Make sure you have fresh batteries in your keyboard (see answer 360023242474 for instructions).

3. Make sure the keyboard is turned on (see answer 360023242474 for instructions).

4. Make sure the receiver is securely plugged directly into a working USB port on your computer.

5. Turn your computer on.

Reconnecting your keyboard:

1. Download the correct version of the Logitech SetPoint mouse and keyboard software from the MK320 Downloads page.

2. Launch the Logitech Unifying Software:

   Windows: Start > Programs > Logitech > Unifying > Logitech Unifying Software

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

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

   

5. When your keyboard is detected, you'll see a confirmation message. If you can type in the testing box, select Yes and then click Next. Otherwise, repeat from step #4.

   

6. Click Finish to exit the Logitech Unifying Software. Your keyboard should now be connected.

Mouse is not working

If your MK320 mouse isn't working, the problem is likely a lost connection. The connection between the mouse and the Unifying receiver can be lost for several reasons, such as:

• 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 mouse on metal surfaces
• Radio frequency (RF) interference from other sources, such as:
  • Wireless speakers
  • Computer power supplies
  • Monitors
  • Cell phones
  • Garage door openers

Before reconnecting your mouse:

1. Try to rule out potential problem sources that might be affecting your mouse, including those listed above.

2. Make sure you have fresh batteries in your mouse (see answer 360023242474 for instructions).

3. Make sure the mouse is turned on (see answer 360023242474 for instructions).

4. Make sure the receiver is securely plugged directly into a working USB port on your computer.

5. Turn your computer on.

Reconnecting your mouse:

1. Download the correct version of the Logitech SetPoint mouse and keyboard software from the MK320 Downloads page.

2. Launch the Logitech Unifying Software:

   Windows: Start > Programs > Logitech > Unifying > Logitech Unifying Software

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

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

   

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

   

6. Click Finish to exit the Logitech Unifying Software. Your mouse should now be connected.

NOTE: The M215 mouse is included in the Wireless Combo MK320.

Keyboard or mouse frequently stops working

If your keyboard or mouse frequently stops working and you keep having to reconnect it with the Unifying receiver, try these suggestions:

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