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Troubleshoot keyboard connection

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3 replies

by cartermofgurnee

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I installed a Microsoft Natural Ergo 4000 wired keyboard to my system through a D-Link KVM-121 switch using a USB-to-PS/2 adapter. The keyboard doesn't function.

When I connect an older PS/2 k/b through the switch, it works.

When I then connect the new k/b to a USB port, it works. If I use a USB-to-PS/2 adapter directly to the PC, it doesn't work.

I'm running Vista Home Premium.
Has anyone run into this?

3 replies

by thechas

Looking at the data sheet for the keyboard, it only supports a USB connection.

A USB to PS/2 adapter plug is not an actual interface adapter. It allows a USB device that has the hardware and firm-ware to support a PS/2 connection to function when connected to a PS/2 port.

We went through similar issues a few years back when manufactures started to drop serial port support on mice.

Your only option is to get a new KVM that supports USB ports.

Chas

by armyengineer51

Not sure if you have already figured this out or not, but it just plain will not work. After much trial and error and a phone call to Microsoft, that keyboard does not work when plugged in as PS/2, period. I really wish someone else made a decent (and decently priced) ergonomic keyboard. Yet another blunder by MS.

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