Windows 10: Keyboard no longer waking the computer (used to work).

I have the "wake the computer with this device" power management box checked (just for the keyboard, not the mouse). It always woke the computer before but for the last few days, the keyboard lights up but no screen. I have to push the Power button to wake it up. USB cable for the keyboard. Strange.

:)

 

Sleep failure after upgrade

My workstation no longer goes to sleep when no activity is detected, it goes to sleep then shuts down the to the point the computer must reboot, bios thing, and after a while it loads the 'sleep image. The mouse or keyboard do not wake the computer I must
press the power button to 'wake' the computer or in this instance power the computer on.

If I press the sleep key on the keyboard everything works as it should, computer screens turn off and the computer lights go off but touching the mouse or keyboard wakes the computer as it should.

Please fix this.

Windows 10 Version 1511 build 10586.63

Intel D5400SX with 2 Xeon CPU Nvidia Quadro 5000

 

Sleep Problem

None of the above worked. I find that, after I did the troubleshoot, the PS2 Keyboard check marked "Allow this device to wake the computer", does not interfere with the computer going to sleep. But the keyboard does not wake up the computer. I have the
bios ACPI setting to allow the keyboard to wake the computer using the space bar, but it does not work. If I plug in a keyboard/mouse unifying receiver or any USB Keyboard/Mouse, the computer will not go to sleep.

 

May not be relative for your system, but my Samsung laptop has the same problem. I blame it on the USB drivers, but have never been able to fix it (started shortly after Win8 came out).

Try updating chipset, storage, and USB drivers.
Good luck!