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ShaileshPatel-0848 avatar image
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ShaileshPatel-0848 asked TonyNorcross-6173 answered

MS Teams - Authenticator not sending code

I have Teams for Mac and MS Authenticator installed on iPhone.

I am able to log into Teams but when I switch organizations it asks me to sign in. I enter my email and password and then am presented with a Microsoft dialog box: "Please type in the code displayed on your authenticator app from your device"

I type the code on my iPhone Authenticator app and it says "You didn't enter the expected verification code. Please try again. View details"

Error Code: 500121
Request Id: 2a42ec34-9bb1-4274-aa7b-16b91729d200
Correlation Id: 8dc28f78-92cd-4876-ac77-25625483caed
Timestamp: 2020-12-10T12:46:44Z

I have tried to Sign in another way as well.

office-teams-windows-itpromicrosoft-authenticator
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JimmyYang-MSFT avatar image
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JimmyYang-MSFT answered JimmyYang-MSFT commented

Hi @ShaileshPatel-0848,

Do you mean you have typed the verification code you received but cannot sign in Teams client?

Does this issue happen in Teams desktop client or Web client?

According to your description, it seems you have enabled 2FA in Office 365. In this case, we recommend you try to follow these steps to disable multi-factor authentication:

  1. Go to the Office 365 admin center.

  2. Go to Users > Active users.

  3. Click on Multi-factor authentication tab option (in new admin center).

  4. Select your user

  5. Click Disable on the right side.

For more reference:

https://docs.microsoft.com/en-us/microsoft-365/admin/security-and-compliance/set-up-multi-factor-authentication?redirectSourcePath=%252fen-us%252farticle%252fset-up-multi-factor-authentication-for-office-365-users-8f0454b2-f51a-4d9c-bcde-2c48e41621c6&view=o365-worldwide


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Thank you for the responses. I did do all of the above. It turns out that the organization I was trying to log into had to re-send MFA registration request. I may not have the term exactly right but once they forced me to re-register, I was able to log into that organization's Teams.

0 Votes 0 ·

Hi @ShaileshPatel-0848,

Do you mean you can only register a new account to login in Teams?

If you can't turn off two-factor verification, it could also be because of the security defaults that have been applied at the organization level. If you've tried these steps but are still running into problems, contact your organization's Help desk for assistance.

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Hi @ShaileshPatel-0848,

Any update?

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TonyNorcross-6173 avatar image
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TonyNorcross-6173 answered

I have exactly the same problem using my business account (email) to sign into Azure (not Office365). I just have no access to Azure it at all. Very frustrating, as I can't offer/develop Azure AD for clients. Even the numeric code generated with Authenticator isn't recognized. Despite removing Authenticator as a 2FA, I still get asked to approve via the app and never get a notification. I've tried removing the app, clearing the cache, re-adding accounts, different phones... it's so secure, even I can't access Azure any longer.

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