Hi,

is anyone currently experiencing issues with all MS Office 365 apps (Outlook, Excel, Powerpoint, OneNote, Word) in the way that they close all at once, randomly, and you are probably losing work due to the unexpected shutdown.

I got a new MacBook Pro with M3 Max with Sonoma 14.5 recently, and after using it for a few hours, it seems that sporadically, all O365 apps mentioned above that are open at the moment are closing all at once, randomly, without any error message, without any prior notice or any user interaction. ALL other applications except Office are working fine, also OneDrive and MS Teams stay open without any issues. After using the MacBook for a few days, it seems that it’s maybe more likely to happen when the Mac is going to standby / lid closed and is woken up afterwards?

Steps I already tried without any change of the behavior, each also including a complete reboot of the machine, in the following order.

Updating Office with the MS AutoUpdater applicationSimple uninstall of MS Office applicationsReinstallation by using a clean new O365 downloadManual uninstallation using https://support.microsoft.com/en-us/office/uninstall-office-for-mac-eefa1199-5b58-43af-8a3d-b73dc1a8cae3Clean reinstallation after complete manual uninstallationAfter uninstalling again, I tried to install it manually with deselection of the MS Defender which is included in the O365 installer package (Defender is already installed by default on the Mac).Renaming the MacBooks hostname from XXX-MBP-ABC123DEF to XXXMBPABC123DEF and renaming the SSD name from Macintosh HD to MacintoshHD. Complete wipe of the MacBook with my IT department and reinstall / setup of the machine, followed by starting auto updater and updating everything to the latest version.

None of these steps is working, and Office keeps shutting down / crashing without any prior notice at random times, most likely after a sleep. It is enough to just open up some office applications and leave the Mac alone, after return you will find the Mac with all office applications closed (except Teams and Onedrive as mentioned above).

Furthermore, I already set the network availability during sleep within my energy saving settings:

Wake for network access from “Only on Power adapter” to “Always” 

Does anyone have any further ideas for analysis or a solution?

On my private MBP with M1 Pro and Sonoma 14.5 there are no issues at all.

Thank you!!!

​Hi,is anyone currently experiencing issues with all MS Office 365 apps (Outlook, Excel, Powerpoint, OneNote, Word) in the way that they close all at once, randomly, and you are probably losing work due to the unexpected shutdown. I got a new MacBook Pro with M3 Max with Sonoma 14.5 recently, and after using it for a few hours, it seems that sporadically, all O365 apps mentioned above that are open at the moment are closing all at once, randomly, without any error message, without any prior notice or any user interaction. ALL other applications except Office are working fine, also OneDrive and MS Teams stay open without any issues. After using the MacBook for a few days, it seems that it’s maybe more likely to happen when the Mac is going to standby / lid closed and is woken up afterwards? Steps I already tried without any change of the behavior, each also including a complete reboot of the machine, in the following order.Updating Office with the MS AutoUpdater applicationSimple uninstall of MS Office applicationsReinstallation by using a clean new O365 downloadManual uninstallation using https://support.microsoft.com/en-us/office/uninstall-office-for-mac-eefa1199-5b58-43af-8a3d-b73dc1a8cae3Clean reinstallation after complete manual uninstallationAfter uninstalling again, I tried to install it manually with deselection of the MS Defender which is included in the O365 installer package (Defender is already installed by default on the Mac).Renaming the MacBooks hostname from XXX-MBP-ABC123DEF to XXXMBPABC123DEF and renaming the SSD name from Macintosh HD to MacintoshHD. Complete wipe of the MacBook with my IT department and reinstall / setup of the machine, followed by starting auto updater and updating everything to the latest version.None of these steps is working, and Office keeps shutting down / crashing without any prior notice at random times, most likely after a sleep. It is enough to just open up some office applications and leave the Mac alone, after return you will find the Mac with all office applications closed (except Teams and Onedrive as mentioned above).Furthermore, I already set the network availability during sleep within my energy saving settings:Wake for network access from “Only on Power adapter” to “Always” Does anyone have any further ideas for analysis or a solution?On my private MBP with M1 Pro and Sonoma 14.5 there are no issues at all. Thank you!!!  Read More

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