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@chockenberry@mastodon.social

Post #813008

2026-03-14 19:33 UTC

Hundreds of hours and thousands of words to understand and fix a crappy Bonjour implementation. This was a helluva rabbit hole. If you have a Canon printer that's constantly going “Offline”, you’ll want to read this: https://furbo.org/2026/03/14/your-mac-and-a-canon-printer/

Replies (8)

  • @Mpwg@hachyderm.io 2026-03-14 20:15

    @chockenberry Do you think that could mess up other bonjour devices (HomePods) on the network?

    Open ##1366252

  • @mbishop@mastodon.social 2026-03-14 20:48

    @chockenberry I was wondering if you tried the dnd-sd flag which allows you to advertise *on behalf of* a service that doesn’t support Bonjour. Maybe with the static-ip, you could turn off Bonjour on the printer, but still advertise the printer and scanner’s service manually. If you wanted to try it, look at the -R flag on the man page. Sorry you are having this problem.

    Open ##1366254

  • @jeffzugale@mastodon.art 2026-03-14 21:29

    @chockenberry wow, that’s bizarre! And I’m one of these people. I’ve learned to just delete and reinstall the printer anytime this happens but it’s interesting to learn the true reason. I’ll be switching mine to a static IP shortly! Thanks. 😊

    Open ##1366256

  • @staaaaaaave@mastodon.world 2026-03-14 21:53

    @chockenberry I’ve struggled with this a few times myself. Time to dig into eero settings and figure out how to convince it that I know what I’m doing…

    Open ##1366257

  • @jgobble@mastodon.social 2026-03-14 23:15

    @chockenberry Whew! Luckily my Canon G6020 is not exhibiting this behavior!!! Thanks for posting so I could check to see that it is okay.

    Open ##1366258

  • @metaning@mastodon.social 2026-03-15 02:07

    @chockenberry Would assigning the printer a fixed IP address from the router’s DHCP, based on the printer’s MAC address achieve the same effect? Then the printer wouldn’t need its settings altered.

    Open ##1366259

  • @zenwheel@mastodon.social 2026-03-15 17:35

    @chockenberry I'm not the only one! I've had my Canon MF743Cdw on a static IP for ages and it still goes offline every few days, my solution was to reboot it nightly, I set up a cron job to do it via curl https://gist.github.com/zenwheel/eadb3adb2488929a2a7ed15f64c57251

    Open ##1366262

  • @njvack@ruby.social 2026-03-16 17:19

    @chockenberry Another truly horrible solution to this problem would be to turn its networking off entirely and plug it in to a Raspberry Pi via USB

    Open ##1366264