Hello,
I have a Cannon MF443dw that I connected to my network through Wi-Fi; I have used all kind of devices: MacBook's, Windows laptops, iPhones, Android phones.
The print works every time no matter what device I use and I can also scan from my devices - on the Mac I have used both the Canon MF Scan Utility and macOS Image Capture, on Windows I have used Canon MF Scan Utility and on my mobile devices I have used Canon Print Business app. But most of the time when I try to scan from the MF menu (Scan to -> Computer -> MacBook/PC) I get an error message ("there was an error") and sometimes the printer doesn't display the Mac/PC at all; some of the times it works without a problem but most of the times it doesn't - I can't pinpoint the problem, because nothing I have tried (reconnecting to the wifi, turned off wifi altogether and turning it on afterwards, software restarting the MF, turning it off and back on, restarting the router) offered a fix, not even a temporary one. There is a connection between the 2, because I see the laptop in MF menu (or I can always print, even though I can't see the Mac on the MF) and I also can scan from my devices.
The problem is only when I try to use the computer scan function on my MF device.
I have talked to Apple - my devices are up to date, they communicate with the MF443; I have an older Brother MF device that works just fine on the same network.
I would very much appreciate a way to fix this issue.
Thank you!