The biggest problem that I see with Microsoft 365 login is that the user has gotten confused as to what password they should be using. Maybe they have a corporate login for Microsoft 365. But it says Microsoft account when the login screen comes up, so they enter their personal login. Then they go back and forth entering corporate in the personal spaces and personal in the corporate spaces hoping for the best. At some point they give up and change their password. In this article I’m going to highlight some of the scenarios that cause login issues and offer a few solutions and troubleshooting tips.

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These often help resolve issues without the need to contact support. If a troubleshooter is available for your issue, select Start to run that troubleshooter. For troubleshooting steps, see Office for Mac repeatedly requesting keychain access. The tool resolves a range of problems which are listed below.

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In this guide, we will take an in-depth look at troubleshooting and resolving common Microsoft 365 login problems so you can keep your business running smoothly. Next time you log in, it will cache them again for you. For manual troubleshooting for step 7, or for more information, see Fix authentication issues in Microsoft 365 applications when you try to connect to a Microsoft 365 service. Passwords have been around for centuries and people have been losing them for that long too. Even the Romans used encryption to try to protect their passwords.

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I have encountered some people who have constant problems logging into Microsoft/Office 365. Most often it’s been a user misunderstanding, which means they enter panic mode and start clicking and resetting passwords in a desperate attempt to get the prompts to go away. No one should have to go through that type of frustration and aggravation.

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Very often when we get a call that someone didn’t receive an email it’s actually because Outlook is offline and requesting a password.Important Running Microsoft 365 Apps on these older operating systems isn't supported.Passwords have been around for centuries and people have been losing them for that long too.Notice everything that references Microsoft online, and all those "msteams" items, too.Use the Excel check troubleshooter to resolve Excel for Windows startup, hang, or crash issues.To find the repair tools go to Apps & Features, scroll down Microsoft Office, and click the modify button.To do this, open Credential Manager from Control Panel by just typing the word Credential after hitting the Windows key.

And on a security note, they’ll know that they aren’t logging into a spoofed page too. Use the Excel check troubleshooter to resolve Excel for Windows startup, hang, or crash issues. Last web page but far from least, there’s the Microsoft Support and Recovery Assistant for Office 365.

Why is my Microsoft 365 not letting me log in?

Troubleshoot 365 logon issues

21Vianet is a service that's available in China. Because of this error, users won't be able to activate their Microsoft 365 apps license. If you find this CNAME record, delete it, and wait for DNS replication to update the DNS record. Microsoft 365 Apps fails to activate when opened from published apps on a Citrix server. For more information, see Known issues (Citrix product documentation). Get Help has troubleshooters for Microsoft 365 you can run for many common scenarios.

Excel check troubleshooter

Find solutions to common problems or get help from a support agent. Use the Microsoft 365 network connectivity test to measure connectivity between your device and the internet, and from there to Microsoft’s network. Use the Microsoft 365 setup troubleshooter to install Microsoft 365, Office 2021, Office 2019, or Office 2016 on your Windows PC.