FIX: Microsoft Teams Security Zone setting error

by Teodor Nechita
Teodor Nechita
Teodor Nechita
Software Managing Editor
Eager to help those in need, Teodor writes articles daily on subjects regarding Windows, Xbox, and all things tech-related. When not working, you may usually find him either... read more
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ms teams security zone error

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When it comes to working together with your colleagues at the office, modern times ask that you appeal to collaborative tools to help you. These tools usually include instant messaging features, file transfers, project management, and control features, and more.

One service that provides all that, and more is Microsoft Teams, and it is extremely popular among companies that use the Microsoft Office Suite, and not only.

However, Microsoft Teams has its own fair share of glitches. For example, some users have reported receiving error messages related to Microsoft Team’s Security Zone settings:

I can’t use the new Teams and Skype Admin Center from either IE or Edge. Had to use Chrome. I keep getting a Security Zone error. I’ve added the domains in IE (don’t know where to do it in Edge) but still got the same error. Ditching both Microsoft browsers and using Chrome instead.

Security zone setting error
Please make sure these two domains are added to the trusted sites in IE or Microsoft Edge: and
If you are using other browsers, please close all browser windows and try again.


microsoft teams securityzone

This is an error message that can appear quite often. That is why we’ve compiled this step-by-step guide that will show you exactly what you need to do to get rid of it.

How do I fix the Microsoft Teams Security Zone setting error?

1. If you use Microsoft Edge

  1. Click Start
  2. Type inetcpl.cpl and press Enter
    • Internet Properties window will open.
  3. Select the Security tab
  4. Under Trusted Sites, click on Sites
  5. In the Add this website to the zone box, type in the website that you wanted to add
    • In our case, these would be:
      • https://login.microsoftonline.comtrusted sites
  6. Click on Close
  7. Open Microsoft Edge
  8. On the top-right corner of the window, click on the 3 dots icon.
  9. Select Settings
  10. Go to Import or exportimport export
  11. Select Internet Explorer, and then click on Import
  12. Click on Back 
  13. Under Account, click on Accounts settings
  14. Under Accounts used by other apps, click on Add a Microsoft account link
  15. Sign in your Microsoft account
  16. Go back to Microsoft Edge window
  17. Click on Device sync settings link.
  18. Toggle Sync your settings to On

This error you will receive if an actual Security Setting in Edge Browser is missing and can be solved by adding the and the page to the trusted site.

Unfortunately, the feature of adding trusted websites on Microsoft Edge is not yet available yet, so your only option is to import all of your settings from Internet Explorer.

Note: If you use Mozilla Firefox or Google Chrome you can fix this issue by logging into the website through a private (incognito) window. No explanation as to why this works currently exists, and admittedly this is more of a workaround, but it will at least fix this issue.

Know of a fix that isn’t a workaround but a permanent solution? Share it in the comments section below so that other users can try it, as well.

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Frequently Asked Questions

  • While Microsoft Teams doesn’t support end to end encryption, organizations can protect their data through two-factor authentication, single sign-on through Active Directory, and encryption of data in transit and at rest.

  • The security of your files, channels, notes, and conversations in Microsoft Teams greatly depends on the security settings your organization is using. Enabling all the security settings supported by Microsoft Teams makes your files and conversation completely secure.

  • Taking into account the ever-increasing number of security threads, here’s what you need to do to make Office 365 as secure as possible: enable multi-factor authentication, turn of Advanced Threat Protection, set up alert policies, assess client security and block all external connections when there’s any doubt about their security compliance.