Appendix

Troubleshooting

Operation problems can be due to a variety of causes. The first step in solving them is to make sure that all cables are securely attached and seated completely in their sockets. In addition, updating the product’s firmware may solve problems that have been discovered and resolved since the prior version was released. If your product is not running the latest firmware version, we strongly recommend that you upgrade. See Chapter 6, Firmware Upgrade, for details.

Symptom

Possible Cause

Action

 

 

 

Mouse and/or

Improper mouse

Unplug the cable(s) from the console port(s),

Keyboard not

and/or keyboard

then plug it/them back in.

responding.

reset.

 

 

 

 

 

KVM switch

Power off all devices on the installation (see

 

needs to be reset.

safety note, page 9); power off the KVM

 

 

switch; wait five seconds; then power up

 

 

 

USB devices not

USB ports need to

Unplug the device’s USB cable from the USB

responding.

reset.

port on the switch’s rear panel, then plug it

 

 

back in.

 

 

 

 

PC or OS does

The CM1164 has a built-in USB 2.0 hub, so

 

not support USB

does not support PCs or OS that do not

 

2.0.

support USB 2.0.

 

 

 

Device not

Windows timing

Unplug the KVM cable from the computer’s

recognized

problem.

USB port; go into Windows’ System Settings

(Windows).

 

and remove the Unknown Device entry; plug

 

 

the KVM cable back in. Windows now

 

 

recognizes the device.

 

 

 

Cannot switch

Keyboard is

Press Ctrl key instead.

ports by pressing

incompatible with

 

[Scroll Lock] twice

Scroll Lock

 

 

invocation.

 

 

 

 

Monitor does not

Some DVI

Power off all devices on the installation (see

display after KVM

graphics cards

safety note, page 9); power off the CM1164;

cable set is hot

are incompatible

confirm all KVM cables are properly

plugged.

with cable set hot

connected; power on the CM1164; power on

 

plugging.

the computers

 

 

 

 

 

(Continues on next page.)

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