I have an ImageCLASS MF453dw multifunction B/W printer at home. It looks like after the latest firmware update Bonjour/mDNS stopped working. I am looking at the services being advertised over mDNS on the printer's subnet and don't see them any longer. Has anyone here observed the same or maybe even has a solution?
Relevant configuration on the printer:
- Wired Ethernet connection.
- Network Settings --> IPv4 Settings --> mDNS Settings --> Use mDNS: On
- Network Settings --> IPv6 Settings: Off
- Network Settings --> AirPrint Settings: On
Troubleshooting steps taken:
- Rebooted printer.
- Toggled the relevant settings Off/On.
- Reset network settings to factory.
- Connected computer directly to a printer with a cable and used dns-sd (macOS) and avahi-browse (Linux) to monitor mDNS advertisements.
- Tried to capture packets on port 5353/udp.
Results:
- The printer does not advertise services over mDNS.
- The printer is not discoverable by devices if it is in the sleep mode.
- The printer is discoverable when when it is online, probably using SDP or some other discovery protocol.
- Running the scanner software does not wake up the printer from sleep any longer.
