Hi all,
I started having the same issue within the last 2 days with my K70 RGB keyboard. At first my keyboard disconnected and reconnected a couple of times while gaming, however today when I turned on my pc the keyboard worked for a moment and then disconnected entirely, not even powering the backlights.
Device manager reported it as an ‘unknown USB device (Device descriptor request failed)’.
I’ve tried updating icue (which did update to the latest version), reinstalling the drivers, chkdsk, sfc scan, registry repair, uninstalling icue and finally plugging in only the USB head with the keyboard logo on it (not the one that seems to be for Corsair link) and I’ve now managed to get the keyboard to stay connected without the RGB effects. I couldn’t pinpoint for sure which solution worked but it seems likely uninstalling icue and unplugging the Corsair link USB then restarting was the trick.
On the note of Nvidia GPU upgrades, I’m running a rx 5700 xt, and have made no manual changes (I say manual since I think there was a windows update the other day) to my hardware or software for at least over a month now. (Edit: I may have updated icue a week or two ago)
Hope this helps, and that a solution is found soon!
