How to fix microsoft authenticator

Hi @albert jovanovic

To better understand the issue, could you please clarify the following?

• Is this a personal Microsoft account or a work or school account?
• Can you sign in to Teams successfully using another device like pc or laptop? If so, does the authentication process complete successfully? Or are you unable to receive the verification code or approve the sign-in request through Microsoft Authenticator?
• Have you updated both Microsoft Teams and Microsoft Authenticator to their latest versions?

In the meantime, you can try the following:

• If you are using a VPN, temporarily disable it and try signing in again.
• If you are connected to Wi-Fi, switch to mobile data (5G, if available) and retry.
• Restart your phone and try again.

If the issue persists and you can successfully use your existing MFA, you can also try removing and re-adding Microsoft Authenticator:

• For a work or school account: Go to My Sign-Ins | Security Info | Microsoft.com, sign in, remove the existing Microsoft Authenticator method, and add it again.
• For a personal Microsoft account: Go to Microsoft Account Security remove the existing Microsoft Authenticator verification method and add it again.

If you cannot sign in to your account, you will not be able to access the security information page to remove and re-add Authenticator yourself. The resolution depends on the type of account:

1.If you are using a work or school account (@domain.com or @onmicrosoft.com)

Please contact your organization's IT administrator and ask them to reset your authentication method so that you can register Microsoft Authenticator again. The administrator can follow Microsoft's documentation here: Manage authentication methods for Microsoft Entra multifactor authentication - Microsoft Entra ID |… 

If you're unsure who your IT administrator is, please refer to How do I find my Microsoft 365 admin? - Microsoft Support 

2.If you are using a personal Microsoft account (@outlook.com, @hotmail.com, @live.com) and cannot use any of the available verification methods, Microsoft Support will be in the best position to determine what account-recovery options are available.

Go to Contact - Microsoft Support >Type "Support" and click Get Help > Click Sign in to contact support at the bottom of the page > Choose Contact support tab > Under Products & Services, select Microsoft 365 and Office > under Category, select Technical Support > Confirm > Choose Chat with a support agent in your browser.

I hope this helps clarify the appropriate recovery path depending on whether the account is personal or managed by an organization.