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thauxley Author

Level 1

72 points

Exchange calendar not syncing in macOS Monterey 12.3

Every since upgrading to macOS Monterey 12.3, I'm having trouble with syncing my Exchange calendar in the native Calendar app. Note: by Exchange calendar, I mean the Office 365 calendar, a service my university subscribes to.

I am able to add the calendar to the native application and events do show up. But it seems that soon after that, it stops syncing and new events will not show even with a forced refresh.

Any ideas what to do? Is this is bug?

MacBook Pro with Touch Bar

Posted on Mar 31, 2022 4:13 AM

Similar questions

74 replies

Nov 8, 2022 1:01 PM in response to commanderclif_me

Yeah, calaccessd is my current best bet as well. Going to try with that unless someone else has a better suggestion. Will report back on my results. What's really annoying is that iOS calendar just works perfectly with Exchange. there is some bug in the macOS version.

Dec 5, 2022 4:31 PM in response to thauxley

I also discovered that the com.apple.CalendarAgent service no longer exists - but I'm only on Monterey 12.6.1 (21G217) .

Anyway, after reading the above from salappsupp and commanderclif_me, and poking around in the process list, I tried:

ps -ax | grep CalNCService.xpc

(find the process ID <id>)

kill <id>

something-or-another will immediately spawn a new CalNCService instance.

Worked for me - my missing meetings reappeared.

I think. Or maybe i've just been grasping at so many straws, something else did it...

Dec 5, 2022 5:05 PM in response to ForwardLooking

I gave up and purchased BusyCal which works beautifully. At times it will sync faster than the desktop MS Outlook client! It's not worth the grief trying to get macOS calendar to work with Exchange, when BusyCal 'just works.'

Dec 6, 2022 5:11 PM in response to ForwardLooking

I'm amending my reply here to say - do what BobHarris, above, says - that'll kill all processes containing [c|C]alendar. I'm not sure whether killing CalNCService or CalendarAgent did the trick; BobHarris's approach gets them both.

Apr 5, 2022 4:14 AM in response to thauxley

Apr 7, 2022 12:36 PM in response to jcrossett

12.3.1. this worked for me.

Apr 11, 2022 6:00 PM in response to jcrossett

12.3.1 also ... This worked for me as well, thank-you for sharing it!

thauxley Author

Level 1

72 points

Apr 11, 2022 6:05 PM in response to Michael Syverson

Is upgrading to 12.3.1 permanently solving this Exchange sync issue for you? It hasn't for me thus far.

mcewen98

Level 1

21 points

Apr 13, 2022 9:12 AM in response to thauxley

I gave these steps a try: https://appletoolbox.com/calendar-app-slow-macos-monterey/

Apr 16, 2022 7:34 AM in response to thauxley

I have the issue with 12.3.1 so apparently the issue persists.

Redinma

Level 1

8 points

Apr 28, 2022 1:28 AM in response to thauxley

I still have this issue on Monterey 12.3.1. I can fix it for a while by removing the Internet Account and re adding it, but it happens again after a few days.

May 13, 2022 4:29 PM in response to thauxley

I have this same issue. Running launchctl doesnt help. All my other (GSuite, icloud, etc) calendars work. It just the office 365/exchange ones that dont update.

Mac OS 12.3.1 on a 16" MBP.

May 16, 2022 10:19 AM in response to jcrossett

This is the only thing that's worked for me. This is a frustrating problem.

May 16, 2022 12:50 PM in response to NotStephenJobs

Just upgraded to 12.4. Love if it works, but not holding my breath...

samhm1

Level 1

8 points

May 18, 2022 7:17 PM in response to NotStephenJobs

12.4 seems to have fixed this, at least for now, for me

Exchange calendar not syncing in macOS Monterey 12.3