10
D-Link KVM-121 Quick Install Guide
Troubleshooting
Keyboard
If your keyboard is not functional, not detected, or there is a keyboard
error on boot-up, check the following:
• Make sure that the keyboard is properly connected to the
KVM-121. Check that the purple coated keyboard cable is securely
plugged into the correct PS/2 keyboard port (purple colored) and
not the PS/2 mouse port (green colored).
• Verify that the keyboard works when plugged into the computer
directly. You will have to shut down your computer first to do this.
• Read your motherboard documentation and make sure that
the PS/2 keyboard’s IRQ is enabled. This can be set for most
computers in the BIOS setup.
• Try using a different keyboard.
Mouse
If your mouse is not functional, not detected, or there is a mouse error
on boot-up, check the following:
• Make sure that the mouse is properly connected to the KVM-121.
Check that the green coated mouse cable is plugged into the
correct PS/2 mouse port (green colored) and not the PS/2
keyboard port (purple colored).
• Verify that the mouse works when plugged into the computer
directly. You will have to shut down your computer first to do this.
• Read your motherboard documentation and make sure that the
PS/2 mouse’s IRQ is enabled. This can be set for most computers
in the BIOS setup.
• Try using a different mouse.
• If mouse movement is random when switching between computers,
try shutting down your computer and rebooting.
• Verify that your computers do not have more than one mouse
driver installed (check your config.sys and autoexec.bat files for
Windows) and that you are using the latest mouse driver.
Troubleshooting
