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The error I was receiving was while trying to scan to a USB thumbdrive, (on side of MF810cdn) while at the Printer. The computer operating system would have no bearing. I was hoping that I could make changes to the printer remotely via the web based portal but was unable to locate the specific settings. I did go to the machine and go through the process of putting System ID and Pin... scrolling through the menus and selecting Enable, (https://oip.manual.canon/USRMA-0263-zz-SS-enUS/contents/09030020.html#09030020). The confusion was that Enable had always been highlighted letting me know that the current setting was enabled. I did select Enable again and truned off and on the machine.. And... Yes now I can scan to USB. Still have problems with Scan to Computer and Scan to email but that will have to be for another time.
