Teams App Not working on Android Devices

I found the issue. Its the Authenticator app. Uninstall it.

Hi Bryan

Thanks for your response. Yes this issue occurs on all Android devices. Also all the affected users belong to same domain.

Check my reply in Private message as well.

Hi

1. Used 3 different networks but issue is same.
2. Cleared Browser cache (Chrome) But as I said I am able to login to teams in Browser But not inside app.
3. Exit all Office365 Apps But result is same.

More Info.

1. I dont think our account is pure office365. Account is linked to enterprise. 
2. Everyone inside our organization is not able to login Teams on Android.
3. Issue happens when I enter my email address and it goes to next screen and come back and display the error. there is no error code just an error : There was problem with the network. Try signing again.
4. App is up-to-date. Current version installed : 1416/1.0.0.2019011401

Waiting for your swift response.

Hi ShabirJan,

Greetings, I am the colleague of Anna and I am here to follow up on this thread, if every one in your organization can't sign in Teams for Android, may I confirm that if it's the same Android Device? If yes, please clear the Teams Cache to see if it helps. you can tap “Settings” > “Applications” > “Manage Applications” > find your Teams app from the app entry then tap it > tap "Storage" > Tap the "Clear Cache" button to delete the cache > return to Android’s home screen > restart your Teams app > sign in your account again and check the result.

If it still doesn’t work, please provide us your accurate account environment, could you please contact your admin to confirm this? Hybrid, on-premises Office 365 pure cloud.

Regards,

Bryan

Hello ShabirJan,

To better know about your situation, you may try the following steps for troubleshooting:

1. Try to use a different network connection to check if issue exists.
2. Try to clear device default browser caches (please be kindly noted that this method will removed all related history records and caches).
3. Completely exit all Office 365 related applications on device and only start Teams app to test this issue. Temporarily exit any mobile device manager or antivirus.

Meanwhile, if you’ve tried above methods and issue still exists, may I confirm the following information from you?

1. Whether your account is pure Office 365 online? If so, you may try to use the default domain (@contoso.onmicrosoft.com) to see if you can login in Teams.
2. Please confirm whether other user in same organization have the same issue.
3. Issue happened after you entered username and password? When error message prompts, is there any error code next to it?
4. Try to check updates for Teams, if there’s no available updates, could you please share the current full version number of it with us?

Best Regards,

Anna