MF Scan Utility Cannot Communicate with scanner -ImageCLASS MF644Cdw

[lonquist]

I have 2 computers on my network that have an error when trying to scan to my MF644CDW Printer/scanner.

It says "Cannot communicate with the scanner. The cable may be disconnected, or the scanner may be turned off. Check the scanner statue and try again. Scanner driver will be terminated." 

I can print to the printer and the scanner selector software sees the printer/scanner and when I install the MF Scan utility software it sees the scanner. It works fine from other computers on my network, but not 2 of them. All windows 11 computers. I have tried everything I can think of like disabling the firewall and security settings. What could be causing this and how can I fix it?

[lej51201]

Thank you, thank you, thank you.  After months of farting around with this issue, this worked for me.  CANON - WAKE UP AND SMELL THE COFFEE!

[PBSF20]

Thank you for this info.  My ImageClass MF 644Cdw would not communicate with my laptop. It would act like it was scanning, but pages in the feeder would not go through and I could only scan to flash a drive.  When I followed your directions, I noticed the second  (duplicate) device also listed a Microsoft driver listed.  Since I knew that Microsoft was causiing these scanning problems in Windows 11, I updated that driver also just in case. Everything is now working (finally).