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We have recently implemented MFA with a conditional access policy. We turned off the ability to receive texts/calls and are forcing the Authenticator app. This is causing issues when users need to re set up the account in the Authenticator app. I have had multiple scenarios this week where the Microsoft Authenticator app has stopped displaying the approve/deny message. The end users try to fix the issue themselves and will remove their accounts from the app and try to reenroll by going to myapps.microsoft.com and restarting the setup process. The problem lies in that even though they are visiting the portal from devices that are excluded from MFA via conditional access (Compliant/Hybrid AD Joined) the myapps.microsoft.com portal is still enforcing MFA to log in. Since they have removed their account from the application they can not authenticate to the portal. There is no alternate method since Phone/Text are disabled.
In order to get the end user back into the portal I have to go to the regular MFA Setup page, enable phone calls or texts, enable and enforce MFA on the end user, and they can finally get in to re-set up the account.
All of this could be fixed with a one time bypass for cloud!
10-06-2018 12:06 PM
Definitely would like to see the one-time bypass feature in Azure MFA. As for the Authenticator, I've also seen it fail to bring up the approval, but usually when I manually open the app, it appears.
10-06-2018 01:13 PM - edited 10-06-2018 01:14 PM
The problems should be divided into different parts:
It's better to use more than one authentication method and you can use the additional one with the phone call and it allows you to re-enroll.
07-18-2019 06:25 AM
I have an issue with MFA, my customers are setup to use Microsoft Authentication Mobile App, all of them have chosen to authenticate through the OATH token, they have been connecting successfully, but this week most of them are receiving this error "Unable to reach the server, please verify internet connectivity", the MFA server is up and running! but the amazing thing is they can reach other web-pages like google or Yahoo. What might be the issue?
04-07-2020 02:24 AM
@Eli Shlomo , for the benefit of other readers:
My approval notifications was not working on Android 9.0, because "Company Portal" application was being shut down by my phone battery optimization app, in the background. I had to white-list "Company Portal" application in the battery settings (both Android settings & DuraSpeed application settings, that comes with my version of Android by default). After that, starting Company Portal application again, Authenticator started to work as expected.
04-08-2020 07:21 AM
I found with my phone that the notifications had been set back to low priority, so no pop up and no sound. I had to go into the advanced set up to be able to change it back. Once i did that, I now get the notifications again. However, I now get three notification sounds after approving the request. Not sure why but much less of a problem than not receiving the request.
04-09-2020 12:19 AM