ATEN CS1794 User Manual download pdf (Page 45)

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 5, The Firmware Upgrade Utility, for upgrade

details.

Symptom Possible Cause Action

Mouse and/or

Keyboard not

responding.

Improper mouse

and/or keyboard

reset.

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

plug it/them back in.

KVM switch

needs to be reset.

Power off all devices on the installation (see safety

note, page 9); power off the KVM switch; wait five

seconds; then power up

USB devices

not

responding.

USB ports need to

reset.

Unplug the device’s USB cable from the USB port

on the switch’s rear panel, then plug it back in.

PC or OS does

not support USB

2.0.

The CS1792 / CS1794 has a built-in USB 2.0 hub,

so will not support PCs or OS that do not support

USB 2.0.

For OS that do not support USB 2.0, keyboard and

mouse functions can be reset using the [F1]

hotkey function. See Other OS Mode, page 18.

Device not

recognized

(Windows).

Windows timing

problem.

Unplug the KVM cable from the computer’s USB

port; go into Windows’ System Settings and

remove the Unknown Device entry; plug the KVM

cable back in. Windows will now recognize the

device.

Cannot switch

ports by

pressing

[Scroll Lock]

twice

Keyboard is

incompatible with

Scroll Lock

invocation.

Switch to the Alternate HSM invocation keys. See

Alternate HSM Invocation Keys, page 21, for

details.

Monitor does

not display

after KVM

cable set is

hot plugged.

Some HDMI/DVI

graphics cards

are incompatible

with cable set hot

plugging.

Power off all devices on the installation (see safety

note, page 9); power off the CS1792 / CS1794;

confirm all KVM cables are properly connected;

power on the CS1792 / CS1794; power on the

computers

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