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JonasRR's avatar
JonasRR
Copper Contributor
May 01, 2020

iOS Login error: MS Teams and Authenticator app just loops

When I start MS Teams on my mobile, it just switches to the Authenticator app and then back to Teams -> MFA -> Teams -> MFA -> Teams -> MFA.... in a infinite loop?! I’ve tried waited 5-10 min with ...
ios
LogonError
microsoft teams
JonasRR's avatar
JonasRR
Copper Contributor
May 02, 2020

In attachments you can see how it just switches between Teams and Authenticator app. 

 

Starting teams: 

 

Switches to authenticator app: 

 

Loads in Authenticator: 

 

Back to Teams: 

 

Back to authenticator again.... 

 

 


And then loops this.

In logon logs in admin center, this user have logon alot of times in the same minute. 

whatisit's avatar
whatisit
Copper Contributor
May 06, 2020

JonasRR I experienced the same symptoms - just moments after I applied a new Conditional Access Policy to my pilot user. Turns out I required the user to require both an Azure Hybrid joined device and an Intune compliant device, instead of requiring Any. After I switched it to Any Teams stopped looping for me... 

Hope this helps

 

  • JonasRR's avatar
    JonasRR
    Copper Contributor
    May 06, 2020

    Thanks whatisit ! 
    That might be the case...  But somehow it stopped for me after another reinstallation of Teams app. 

     

    But the only policies I use in our tenant is the ones that are MS default preview conditional access policies for MFA, so maybe there are some wrong config in the default ones that I can't seem to edit.. 

     

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