This message occurs when the Data ONTAP universal serial bus (USB) adapter driver detects a protocol mismatch in the device attached to the associated port in the associated adapter. It can be due to one of the following reasons:
Unsupported interface.
Unsupported device class or device subclass.
Does not support the required pipes.
Does not support required end points.
Does not support the required maximum transfer packet size.
Note that the Data ONTAP USB driver only supports USB 2.0 bulk-only mass storage devices.
Corrective action
Take one of the following actions:
If the device is connected to an external USB port, try replacing the device with a device from a different product family.
If the device is connected to the motherboard, contact technical support for help in diagnosing a USB issue.