For USB devices:
usbmon (Linux) or USBPcap (Windows) Look for a with bmRequestType indicating a vendor request and bRequest = 0x96 . Inspect the wLength field. If wLength is zero but the device expects 8 bytes, that is a misformat. For USB devices: usbmon (Linux) or USBPcap (Windows)
: After resolving the error, search your system logs ( Event Viewer → Windows Logs → System ) for the source that reported 0x96 . It will often name the exact device or service, shortening future diagnostics by hours. shortening future diagnostics by hours.