Steve V

I take it back: It's not resolved. After working in this config for several days without issue, it just disappeared again with the "USB device not recognized" error and "Unknown USB device (Port Reset Failed)" error in device manager. I haven't opened this case in years, but I will open it up and re-seat all of the USB connectors. This device might be dying. It's only a few years old.

PSA in case any of you are experiencing this issue. Disabling USB selective suspend has resolved the issue for me for the time being. Symptoms H150I Elite Capellix disappears from iCue; sometimes it appears and disappears intermittently In Device Manager (DEVMGMT.MSC) USB shows an error and "reset" in device manager In iCUE, color profiles and themes do not apply, apply partially, or apply intermittently to RGB fans connected to the H150i iCUE restart, service restart, and removal / re-install do not resolve the issue In Device Manager, Uninstalling and re-installing the H150i does not resolve the issue Resolution Disable USB selective suspend In Power Options (legacy Control Panel (CONTROL.EXE) > Power Options), select "Change plan settings" for the active power plan Select "Change advanced power settings" Open "USB settings" > "USB selective suspend setting" Set the Setting to Disabled Note this change must be configured individually for each power plan Relevant hardware ASUS ROG Crosshair VIII Dark Hero motherboard AMD CPU H150i Elite Capellix using the USB headers on the motherboard