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Microsoft teams app has suddenly stopped allowing me to log in with work account

Daniel Ha 25 Reputation points
2025-10-10T20:03:00.1+00:00

Hi,

I am required to use microsoft teams for mobile for work. I have used it with my work account for over 6 months without issue. This week the app kicked me out of my account and now will not let me sign in.

My teams still works on the desktop app for this account. I have uninstalled/reinstalled/cleared data and cache/restarted the device in every possible combination. We are required to use the authenticator app alongside teams and this app is working fine, as usual.

I have just updated my device to the latest android version but it still does not work. I have not made any changes the account or phone at all and it just stopped working one afternoon. My internet connection has been stable throughout.

Running out of ideas, please help!

Thank you in advance,

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  1. Ryan-N 12,660 Reputation points Microsoft External Staff Moderator
    2025-10-10T21:54:43.9333333+00:00

    Hi @Daniel Ha,

    Thank you for your response and for providing additional details regarding error codes 70044 and 50207. I’d like to share a few more insights as follows:

    • Error 70044: This error is related to an expired or invalid login session due to your organization’s security policies. Specifically, your organization may have configured a policy that requires users to re-authenticate after a certain period (e.g., every 24 hours or weekly). Once the session exceeds this time limit, the system will automatically log out and prompt the user to sign in again.
    • Error 50207: This error occurs when the Teams app attempts to sign in via a broker application (Microsoft Authenticator) but hasn’t been properly configured. It typically appears when the device hasn’t completed authentication or hasn’t fully synced with the system.

    Since you’ve already tried steps like reinstalling and clearing the cache, in this case, I recommend raising a support ticket with Microsoft via: https://admin.microsoft.com.

    After submitting the ticket, you’ll be connected with a live agent who will assist you directly, review your sign-in logs, and check the policies applied to your account.

    Once the sign-in logs and other necessary details are reviewed, the agent will guide you step-by-step through the resolution process until the issue is resolved and your Teams mobile app functions smoothly.

    Note:

    As a moderator, I’m responsible for guiding you through basic troubleshooting steps and helping you reach the right support channel. While we do not have access to internal systems or administrative tools required to resolve account-specific or backend issues, we will continue to do our best to support you within the scope of our responsibilities.

    If you have any updates regarding the issue, or if you have any other questions, please feel free to share them with me. I’ll be happy to assist you.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". 

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread. 

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  1. Ryan-N 12,660 Reputation points Microsoft External Staff Moderator
    2025-10-10T20:55:51.09+00:00

    Hi @Daniel Ha,

    Welcome to the Microsoft Q&A forum.

    Thank you for reaching out to us.

    As I understand it, you’ve been using the Microsoft Teams mobile app for 6 months without any issues, and the problem only started this week. I’d like to share the following information with you:

    Since your account is a work account, it is managed by the admin of your tenant (likely your company’s IT department). Because you can still use Teams normally on your desktop, the issue may be caused by your mobile device being accidentally disabled by the admin, or a policy unintentionally applied to your account.

    In this case, I recommend that you contact your company’s IT department and provide them with the following steps to help check whether any policy has been applied or if mobile sign-in has been unintentionally disabled:

    Step 1: Go to https://entra.microsoft.com

    Step 2: Navigate to Devices → All devices, search for your phone’s name and check if it is enabled

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    Step 3: Go to Users → All users, and click on your account name

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    Step 4: Click on Sign-in logs, and check the Sign-in error code and Conditional Access to see if any policy is currently applied to your account

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    If you have any updates regarding the issue or other questions, feel free to share them with me, and I’ll be happy to assist you further.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". 

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread. 

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    1 person found this answer helpful.

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