8 Most Common Office 365 Problems and How to Fix Them

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If the above steps have not resolved your issue, open Outlook in Safe Mode to see if the issue is resolved.

Solutions for Office 365 problems

An internet connection is not available or a firewall is blocking network connections. Check POP3 and SMTP settings for connecting to Microsoft mail servers (addresses of servers, ports, encryption, authentication). If you have forgotten your password for the Office 365 account, try to recover or reset the password. If your Office 365 subscription has expired, buy a new license and extend your subscription for a new period. For tailored solutions and expert guidance on Microsoft 365 licensing, contact Trusted Tech today and ensure your organization gets the most out of its investment.

Solutions for Office 365 problems

Microsoft Office 365 Troubleshooting Services- Quick & Reliable Fix for All Your Office 365 Issues



  • Office 365 applications installed on a computer must connect to Microsoft servers over the internet at least once every 30 days for the license to be checked and validated.
  • To comply with the Transparency in Coverage Rule, click here to view our health plan's machine-readable files containing negotiated rates and historical payments.
  • Domain verification issues can also prevent the normal use of the Microsoft Office 365 suite.
  • Use the Microsoft 365 network connectivity test to measure connectivity between your device and the internet, and from there to Microsoft’s network.
  • Whether it’s a Microsoft Office 365 sign-in problem or a password reset issue, here’s how to get back in securely.
  • The good news is that the majority of problems can easily be solved on the client’s side.


Office 365 applications installed on a computer must connect to Microsoft servers over the internet at least once every 30 days for the license to be checked and validated. If you don’t connect the installed Office 365 applications to Microsoft servers for more than 30 days in a row, these applications are deactivated. Once a connection is established to Microsoft licensing servers, the license is renewed.

But where are millions of users going for easy trouble shooting within the Microsoft Office 365 suite? Troubleshooting library sites and FAQ's online can get overwhelming to search through, let alone to find technical solutions that are written in laymen's terms. We are about to break down 5 of the most common issues and how to resolve them in the comfort of your own office (or home). So what are the usual Office 365 problems and how can a business or user solve them?

How to fix Office 365 issues related to synchronization



You can also work around this issue by logging into OneDrive on a desktop browser and dragging your file(s) into the documents folder. To diagnose Outlook and OneDrive connection issues that often cause Office 365 not working problems. If you see "Working Offline" or "Trying to Connect", Outlook cannot reach the email server.

Office 365 Repair Tool



From here, review the details under the subscriptions heading or the cancelled subscriptions heading to confirm your subscription. Be sure to restart your Office applications if you have to renew your subscription. If you receive an error message or an unrecognized user ID or password message, confirm that you are entering the correct user ID and password.

How to resolve Office 365 issues?



If you have ever had to call any tech support or your company's IT team, this is what they will start with. And as experienced IT Support technician I cringe having to ask users this but before we move on...Is your computer plugged in, charged and turned on? Use the Microsoft 365 network connectivity test to measure connectivity between your device and the internet, and from there to Microsoft’s network. You can unintentionally send an important Microsoft 365 item to the recycle bin, especially if you have too many files on your device’s hard drive. Still, the files you send to the recycle bin are not permanently removed.

Solutions for Office 365 problems

Facing Issues with Microsoft Office 365? Let Us Fix It for You!





It indicates that you have reached the storage limit specified by your subscription plan. To Microsoft 365 support fix these related Office 365 issues, you can try disabling Add-Ins and then running Microsoft apps without them. Abacus Managed IT Services is a leading provider of security, maintenance, and integration of IT systems and security plans for different institutions. Let our expert engineers and support staff guide you in securing and preparing your business operations.



In the Email tab, click on your account and choose repair if the option is available. Follow the Microsoft support article here Repair Outlook Data Files (.pst and .ost) (microsoft.com) in order to repair your Outlook data files. To repair the entire Office suite, see the top of this article for instructions. If you are having trouble logging in, first check the number lock and caps lock keys on your keyboard. Use the Microsoft 365 activation troubleshooter to resolve Microsoft 365 subscription activation issues.

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Use the MIcrosoft 365 inventory scan troubleshooter to generate either a normal or full scan report of your computer and installed Microsoft 365 applications. Try testing the configuration of your Office 365 email system and fix the problems that are preventing users from using the email services. Microsoft Support and Recovery Assistant can help you resolve problems with Microsoft Office, Office 365, and Outlook. This error appears when you attempt to upload or save a Microsoft 365 item.
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