Question about IOGear GCS634U KVM Switch

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4-port usb kvw switch #GCS634U

Hi,
I just bought this switch to run 3 desktops. I hooked up a logitech cordless mouse/keyboard MX3000 laser but it only switched computers once and then stopped. I called tech and they said cordless mice/keyboards don't always work. The website says the switch will work with most cordless setups. Any chance you know how to get this to work? Or, do you know of a specific cordless setup that will work?

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The GCS634U is designed and tested to work only with a standard USB keyboard and mouse. However, most wireless keyboards and mice work with it, but they cannot guarantee any specific model or brand that would work correctly.

As you can see, this KVM switch is a bus powered device (meaning it only gets power from the USB ports of the computers). If the computer cannot provide enough power for the KVM switch to function correctly, then the wireless keyboard will be affected.

You may try using the IOGEAR GKM541RA. It's tested to work with the GCS634U. Or you may also try using a self-powered USB hub (meaning, it has it's own power adapter) and connect it in between the KVM switch and the computer. That self-powered USB hub will be the one that will add up power to the KVM switch and help it to function properly.

Posted on Apr 07, 2009

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If the KVM is going to work with a wireless keyboard and mouse the single USB plug should be plugged into the keyboard port of the KVM. The ports should be labeled on the bottom side of the KVM. If the problem continues the best thing to do is try a wired keyboard and mouse in the KVM to verify that the KVM is in fact working correctly. I have heard that the IOGear wireless keyboard and mice combos have a good success rate.

Posted on Jan 17, 2009

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1 Answer

Toggle keys don't work as advertised


Hi David,

I located and downloaded a copy of the manual and found the details for [Scroll Lock] [Scroll Lock] [Enter] on page 8 that simply says:

"This will switch everything (KVM and sound) to the next port."

There is no mention of this keystroke switching to the next port "only if there is a computer connected" as you indicated in your question. It would seem to me that if the KVM switches to the next port when it receives the [Scroll Lock] [Scroll Lock] [Enter] keystroke - it is working as described in the manual that I downloaded from the IOGear site.

The only remaining commands accepted by the KVM are :

[Scroll Lock] [Scroll Lock] [a] [Enter] which is a 5 second Auto Scan mode

and:

[Scroll Lock] [Scroll Lock] [a] [n] [Enter] which is nearly identical as the a5 second Auto Scan mode - except the the numerical value you type in place of [n] is the number of seconds spent on the next port.

Double check your manual and if you're still having trouble - contact IOGear directly below:

Toll Free 866-9-IOGEAR (USA)
Phone: 949-453-8782
19641 Da Vinci, Foothill Ranch, CA92610
www.iogear.com
support@iogear.com

Good luck!

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1 Answer

Just bought a 4 port KVM and hooked it up and the USB mouse and keyboard arn't recognized by either of the two computers that were hooked up. The HOTKEYs are recognized by the KVM. The lights on keyboard...


is that a Mouse/keyboard combo ? If so, try with a standalone Mouse and a keyboard. If the Keyboard and Mouse need Special Drivers the solution might not work neither.

I hope that helped.

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First, you have to make sure that the KVM switch is directly connected to your laptop, and NOT to a docking station.

This KVM switch is designed to work with direct connections to the computers.

Second, the light indicator on the KVM switch is not an indicator for power. It's an indicator to see which port is active. If your laptop is connected to port 2, but the focus of the KVM is in port 1, then the port 1 will have a light, not the port 2.

You may also refer to the user manual of the KVM.

Thank you!

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1 Answer

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This GCS634U was designed to work with USB keyboards and mice.

First, you need to make sure that your using a direct USB keyboard (no PS/2 to USB adapter).

Second, connect the keyboard directly to the computer and make sure that it's working correctly.

Third, check the connection between the KVM switch and the computers. Try to connect the USB cables of your KVM into different USB ports of the computers.

Last, try to use different USB keyboard to see if the issue is the KVM or the keyboard.

Try to power cycle the KVM switch. Disconnect the KVM from the computers and make sure that there's no even one cable connected to the computers.

Leave the KVM switch disconnected for 10 minutes, then plug it back in. Reboot one computer first and wait until it's fully rebooted. Turn on the second one untill all computers are fully booted up.

If same problem occur, then you need to contact IOGEAR and have them RMA the device.

Thank you and good luck!

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Your problem has nothing to do with the Operating System (Vista), it has something to do with the brand of your computer. I have similar problem before, I have Vista (Dell), but the time I connected another Vista (Sony Vaio), everything worked correctly.

This is what you need to do:

1. You have to make sure that you are using a standard USB keyboard and mouse.

2. Connect first the keyboard and mouse directly to the Vista computer to see if the USB ports of your computer are working properly.

3. You may power cycle the KVM switch by disconnecting it from the computers (including the keyboard and mouse) and leave it disconnected for 2 minutes.

4. Reconnect everything after two minutes and then reboot the computers.

5. Try using different USB keyboard if problem exist after power cycling the KVM switch.

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