Microsoft 365 Calendar Won't Sync with iPhone or Webmail

Anonymous
2024-03-07T00:11:06+00:00

Microsoft reported on February 29th that the connection issue for MS 365 using Exchange ActiveSync had been resolved.

I then changed my settings to allow for updates as I too had lost my Exchange connection. The update installed was 2402 (Build 17328.20162).

The update however, has now created an issue with the MS 365 calendar not syncing with my iPhone and Webmail. This only occurs when I'm using the MS 365 calendar on my laptop to add or change an event. The entry or change does not show up on my iPhone or webmail. However, when I use my iPhone calendar or Webmail calendar to create an event or change an event, it does show up in the MS 365 calendar on my laptop? Go figure.

I have deleted and set up my account on my iPhone. I have uninstalled MS 365 and reinstalled from my MS Account. The version reinstalled is 2401 (Build 17231.20236). No change.

I use Shaw/Rogers as my email provider.

Please help.

Thanks

Barry

Calgary, Canada

Microsoft 365 and Office | Install, redeem, activate | For home | Other

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  1. Anonymous
    2024-08-17T23:44:34+00:00

    Barry, thank you for persisting with MS on this issue. My support ticket was closed by MS without a solution. Frustrating. I will follow your progress in this thread. Let me know if there’s any collateral I can provide.

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  2. Anonymous
    2024-08-20T17:27:54+00:00

    Hi Jos,

    Thanks very much for your message.

    Yesterday, I received an email from the MS contact who I've been working with on this issue for the last couple of weeks. He advised that he is in the process of preparing a case study to share with his manager/supervisor and will update when next steps are determined. Keeping my fingers crossed, but not holding my breath.

    Have a great day.

    Barry

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  3. Diane Poremsky MVP 17,531 Reputation points MVP Volunteer Moderator
    2024-08-20T17:49:09+00:00

    Are you connecting to Microsoft 365 Exchange online (including outlook.com)?

    The issues that were fixed in Version 2401 Build 17231.20182 apply to 3rd party services that use Active Sync (like Zoho) - not Exchange Servers (outlook desktop does not use Active Sync to connect to Exchange).

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  4. Anonymous
    2024-08-21T19:24:44+00:00

    Hi Dianne,

    Good to hear from you again. I’m connected via a Family MS 365 subscription. Shaw is my email provider and I’m connected using Exchange ActiveSync.

    You helped me revert back to a previous version which is the only one that still works perfectly with email, calendars, contacts and tasks.

    I’ve been trying to get the issue resolved for 7 months.

    Very frustrated!

    Barry

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  5. Diane Poremsky MVP 17,531 Reputation points MVP Volunteer Moderator
    2024-08-21T20:29:24+00:00

    Hi Dianne,

    Good to hear from you again. I’m connected via a Family MS 365 subscription. Shaw is my email provider and I’m connected using Exchange ActiveSync.

    You helped me revert back to a previous version which is the only one that still works perfectly with email, calendars, contacts and tasks.

    I’ve been trying to get the issue resolved for 7 months.

    Very frustrated!

    Barry

    Ok - you're using the Shaw account with EAS - so it sounds like it broke again. In which case, you need to rollback to 2401 Build 17231.20182 (or the most recent version when it still worked).

    Type cmd on the Start screen to find the Command Prompt then right click on it and choose Run as Administrator. Paste this line in the command prompt window.

    "C:\Program Files\Common Files\microsoft shared\ClickToRun\officec2rclient.exe" /update user updatetoversion=16.0.17231.20182

    Uninstall Updates in Office 'Click to Run' (slipstick.com)

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