How to Troubleshoot Common Microsoft 365 Problems and Issues

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These can include missing files, ghost icons, or documents that do not update in real-time.



Troubleshoot Office 365 Sync and Login Issues

You can close the wizard at this point as you do not need to complete it for re-authentication to take effect. You should run a test sync after re-authenticating the sync to ensure it is working. It could be due to incorrect login details, administrator password resets, or account lockouts after multiple failed attempts. Whether it’s a Microsoft Office 365 sign-in problem or a password reset issue, here’s how to get back in securely.

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  • The Users Processed count will be 0 is there are no users in the synced dataset after filtering.
  • You'll also receive a mail (to the alternate email and to your admin email) from Microsoft 365 that indicates your tenant has encountered directory synchronization errors.
  • Similarly you should review the Users Deactivated sheet on the sync summary spreadsheet attachment as you can also delete these users to bring your total down.
  • Contact MicroSec today and let our experts handle your Office 365 troubleshooting needs carefully and professionally.
  • Whether you’re struggling with Microsoft 365 sign-in problems, Office 365 not working, or syncing issues, our team is here to help.
  • After you run the commands, and if they completed without errors, you may see a quick progress indicator or a status result that contains information about the package installation.


If your Office 365 is not working properly because it’s outdated, support can handle update problems that prevent essential patches and security fixes from being installed. It seems to be some sort of error with the user not being able to connect and sync with M365 servers. This also started happening out of nowhere about a week Exchange connectivity diagnostic ago. A vast community of Microsoft Office365 users that are working together to support the product and others.

I got an error message that my company has exceeded the number of objects that can be synchronized



To diagnose Outlook and OneDrive connection issues that often cause Office 365 not working problems. Create your account and connect with a repair PST file without data loss world of communities. I have a user who is having trouble syncing with Microsoft 365. The authentication issue occurs because of missing package information about either the Active Directory Authentication Library (ADAL) or Live ID.



What should I do if my sync failed due to authentication issues?



Troubleshoot Office 365 Sync and Login Issues

Comprehensive repair solutions for repair PST file without data loss Office apps—both Quick Repair and Online Repair to ensure minimal downtime. To identify Microsoft-side issues affecting Office 365 services. Are you facing Microsoft Office 365 not opening or continuing to crash? This is one of the most frustrating issues with Microsoft Office, often caused by update failures, corrupted files, or compatibility problems. Discover how IT leaders can address key Microsoft Copilot questions on cost, deployment, security, and integration to maximize ROI and adoption. In these cases, direct escalation to Microsoft or working with a Microsoft CSP partner, such as TrustedTech, can expedite resolution and minimize downtime.

Tools Methods To Use to Troubleshoot Office 365 Issues



Troubleshoot Office 365 Sync and Login Issues

To diagnose and automatically fix several common Microsoft 365 sign-in issues, run the Microsoft 365 Sign-in troubleshooter. You need to login to the correct microsoft account if you need to sync your computer and tablet. TrustedTech is dedicated to being a reliable resource for all software and technology support needs. Our relationship to the Microsoft Partner Network allows us to provide competitive pricing and authentic software and support, all with a much-needed human element.
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