Acer Veriton N4640G USB keyboard fails -- unkn usb device (device descriptor request failed)

bluelyner
bluelyner Member Posts: 1 New User
edited March 1 in 2020 Archives
We have a few N4640G systems that after a reboot, the keyboard fails to be recognized.   It fails in all usb ports.  We have swapped kb's and those kb's work on other systems.   This just started to happen about three weeks ago on different Acer veriton systems.   We have all drivers updated and bios up to the latest versions.  sometimes we can get the kb to recognize, until it restarts again. 

Answers

  • Did the problem occur after some recent windows update?
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