Kensington Expert Mouse only works on front USB Ports

I have a fairly new Windows 11 Legion Desktop machine. I have been using it since August 2024 with the normal setting up minor issues.
But nothing Major. Anyway, today I booted the machine up and "no Mouse detected". I rebooted and same thing. I have the Kensington
USB Expert Mouse plugged into one of the USB ports in the back of the computer. I tried booting with it plugged into two of the other USB
ports in the back and it still would not recognize the mouse anymore. Plugged and unplugged the mouse in and beep sound but still no mouse.

I then plugged the mouse into one of two USB ports in the front of the computer and it works fine. Works in either of those ports.
I don't know why this all of a sudden happened. No new software or anything. I would like to keep the two front USB ports free if possible for
convenience. Any ideas on what causes a problem like this and possible fix?
Thanks, Dave
Windows version 24H2 (OS Build 26100.3476)

Hi Dave

What’s the exact model? Does it have one on the back? There are a few Lenovo Legion Desktops.

Firstly; Do any other USB devices or USB drives work in the rear USB ports?

If not; Enter your BIOS (press repeatedly, usually F2 or Delete at boot)
Try resetting BIOS to defaults, saving and rebooting.

See if that re-enables the rear USB’s

Check Optional Updates in Windows Update for any updated drivers that may be present.

May sound implausible, but

Unplug PC> Press and hold Power button for 15 seconds (discharge capacitors)> Plug it back in and boot to test operation. Has 100% worked for others with USB issues in the past. An easy thing to test

A Guy

You have not provided us with information about which type ports you are using to connect your mouse; which ones work and which don't.

In newer desktops, most times there will be a module with 2 type A usb 2.0 ports on the back that are separate and apart from all the other usb ports. These 2 ports should be used for mouse and keyboard as in some machines there is no usb 3.0 support when working in bios. The remainder of the rear ports are usually usb 3.0/1/2. If both of the black 2.0 ports on the back will not work with your mouse, I would suspect that the set of ports is bad or is not providing enough current to support your mouse. I would test these 2 rear ports using a standard corded usb mouse. One or both of these 2 ports may be defective.

Likewise, though there is no set rule, most times the front ports on new PCs will all be usb 3.0/1/2 type A and/or type C UNLESS your desktop is equipped with a couple of type A usb ports that provide power delivery for charging external devices like phones. While these power delivery ports are SUPPOSED to be red, they are not always. On both my computers they are black like regular old usb 2.0 ports but the way they are marked on the case is different. To make matters worse not all manufacturers mark them the same way. You would have to consult the documentation for your PC to know which ones those are. I would not use such charging ports for a mouse and keyboard.