I have spent the last two hours trying to get my MF212W scanner up and running. I'm running Windows 11 on a Lenovo Legion desktop. I followed multiple suggestions in different forums including
- Using Device Manager to disable Imaging Device, updating driver, and rebooting
- Uninstalling and reinstalling all drivers and scan utilities
- Applying the optional update to .NET framework for 24H2 (KB 5050577)
- Checking firewall settings
Finally, I went back to the Canon support site, and instead of choosing Windows 11 from the dropdown for selecting the OS, I chose Windows 10 (x64) and downloaded the, supposedly not needed for this OS scan patch: [Windows 32-bit & 64-bit] Patch for Network Scan, USB Scan.
I installed and rebooted, and my scanner was back up and running in 2 minutes. I hope this helps someone else avoid the frustration.