Hello marcy-Dong
I see no one has responded to this post yet. So, at this point I would recommend contacting your local Xerox Support Department to speak with a Product Specialist for more assistance. Please call 1-800-821-2797 or 1-800-835-6100.
There was an error when FWA was calibrated. FWA image sensor did not return valid measurement data, and there was a problem with the Ethernet connection. I have tried many times without success.