Steps to fix the error of not being able to sign in to Microsoft Teams

Microsoft Teams is a platform that provides very popular and useful online services such as chat, video meetings, file storage, and application integration. However, sometimes users encounter problems when logging in, unable to log in, . leading to many inconveniences and annoyances. So how to solve this problem? Let's find out in the following article.

1. Check Internet Connection

Check if the network connection is stable or not by clicking the Wifi icon on the Taskbar (taskbar) at the bottom of the screen. Changing the network connection can also fix the problem.

If the network connection you are using shows the message No Internet, secured, please switch to another network until it says Connected, secured. Then you can try to open a few websites to check the Internet status and then log in to Microsoft Teams as usual.

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2. Try to login on web and mobile platforms

Try signing in to Microsoft Teams using a web browser HERE, or logging into the Microsoft Teams app on your  phone . If the login is successful, then the problem is in the computer. You can do it in 2 ways:

Method 1: Re-download the Microsoft Teams application on your computer HERE.

Method 2: Check the computer again as follows:

Step 1: Click the Windows icon in the lower left corner of the screen, find Windows System and then select Control Panel.

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Step 2: After entering the Control Panel interface, select Credential Manager.

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Step 3: Continue to select Windows Credentials and delete all Office related accounts   at Modified: Today. Then, restart your computer and sign back in to Microsoft Teams.

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3. Set the correct date and time

Microsoft Teams error may be due to incorrect time installed on Windows.

Quick guide on how to reset the time on Windows 10: Click the Windows icon > Select Settings > Select Time & Language > Click the drop-down list in the Time zone section > Select (UTC+07:00) Bangkok area, HaNoi, Jakarta > Set time automatically, change it to On.

4. Turn off VPN (if available)

If the device is using VPN applications   , you should turn it off, because it is possible that the IP you are emulating is located in another country that does not currently support the Microsoft Teams service.

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5. Turn off the firewall (Firewall)

Quick instructions on how to turn off the firewall: Open Control Panel > Select Windows Defender Firewall > Click on Turn Windows Firewall on or off > Click on the 2 options Turn off windows firewall (not recommended) and click OK.

6. Sign in with a Windows account that matches your Office 365 account

Sometimes Microsoft Teams sign-in problems occur if your Windows and  Office 365  use two different accounts. Double-check to make sure the Windows login account matches the Office 365 sign-in account.

7. Update Microsoft Teams

Normally, the Microsoft Teams desktop application will automatically update. However, you can still check for updates by clicking on your profile picture at the top and selecting Check for updates.

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8. Contact team leader to report bugs or contact Microsoft

In case you have tried the above and it doesn't work, this is the last resort. Contact your workplace technology or contact Microsoft directly for support.

​Hopefully the solutions in the above article can help you fix Microsoft Teams errors effectively. Thank you for watching and see you in the next posts!

David Pac

Update 18 June 2021