Good day everyone. There is a MFP Canon mf4570dn. Everything worked fine, one day scan speed has decreased significantly. More precisely, the scan goes as usual, but processing in MF Toolbox (the green loading bar) goes longer than necessary. When scanning a large stack of documents, it takes a very long time. The MFP is connected via LAN, tried on USB (works quickly) ... What could be the problem? Tried to reset all the settings on the printer, reinstalled the driver, rebooted the switch (dpi does not affect) PS: Switch Cisco Catalyst 2960
