8KSW12DP-DM, Keyboard input switches to other PC

For the most part the KVM is working well. However seemingly random, I’ll hear the tell-tale “USB unplugged, USB plugged” sound from Windows and the keyboard stops working. If I unplug the keyboard from the KVM and replug it, I still get no keyboard. All other USB ports and the monitors are working OK. If I move the keyboard out of the dedicated keyboard port and into one of the standard USB ports, I can use the keyboard again.

However, it just happened and I now understand what is happening.

When I get the tell-tale sounds of USB unplug/plug, the keyboard port is being moved to the other connected PC. But the monitor and mouse and all other USB ports are still on the correct PC.

I confirmed this by blindly opening an app (windows-key, type name, press enter), after I lost the keyboard. I then pressed the button to switch to the other PC, and sure enough, that app has been opened.

I can fix it by switching to the other PC and back again, but this is clearly a bug in the firmware, or something.

Hi there,

Thanks for getting back to us and we are truly sorry for this issue.
we also have got a similar feedback from another client and also try to reproduce this in our lab,but still cannot make it out.
Could you share with us what is your keyboard model?
And this issues happened at both two PCs side?



I have 2 PCs, lets called them “Work” and “Gaming” PCs. I have so far only noticed this occur with the Work PC. It can occur randomly, but often enough that it will occur 2 or 3 times in any work day. I’ve timed the occurances and there doesn’t seem to be a pattern. It can happen whilst I’m at the PC and when I’m not. For example, it has happened whilst sat back in the chair watching a traning video, so the inputs were idle.

Work PC: Dell Precision 3460, Intel i5 13500, 32GB DDR5, Windows 11
Gaming PC: Asus PRIME X570-PRO, AMD Ryzen 7 5800X, 32GB DDR4, Geforce 3090 Founders, Windows 11
Input: Keychron K8 TKL and Logitech G PRO Wireless
Output: Dell P2723D and Alienware AW3423DWF

I don’t have any other items plugged into the KVM.