Stuck in an infinite loop of needing to already be signed in to the Authenticator app to approve a sign in FOR the authenticator app.

I wanted to respond because I found the issue.

I had trouble getting into my school account because it needed to be authenticated but I couldn’t get in because to get in I had to get authenticated.

I took this to IT support at my college and they said the issue was the result of getting a new phone, thus i guess confusing Microsoft Authentication. I don’t know if you can do this yourself or if you have to take it to IT but he managed to merge both accounts and this time when I set up the account it asked for some more info and then let me sign in and it works now. Hope this helps anyone as I was very frustrated.

I ran into the same issue after buying new phone and erasing the old one before setting up my Microsoft stuff (outlook, authenticator etc.)

I finally managed to solve this by:

1. Logging to microsoft account on my PC
2. Under Security Info tab, I saw my old phone used for multifactor authentication
3. I clickend delete next to the old phone and confirmed.
4. I was then able to go through the authenticator setup on my phone, escaping the loop!

Maybe this helps. Although I was already logged in to my microsoft account on desktop PC and did not require any multifactor authentication to access it, so if you aren't already logged in I can imagine it will want you to authenticate, sending you down the loop on desktop as well.

Hi,

I have my own business address, I am trying to solve the issue from there, but it is also not possible because I see the same loop in that account.

I have also deleted Microsoft authentication from my mobile phone, but it is always asking the authentication; there is not any other option.

Hi,

I have my own business address, I am trying to solve the issue from there, but it is also not possible because I see the same loop in that account.

I have also deleted Microsoft authentication from my mobile phone, but it is always asking the authentication; there is not any other option.

If you are lucky, then you can enter those setting areas.

Unfortunately, I cannot enter even those areas because, again, I see that screen asking for numbers, which I have to see on Microsoft authentication; it is crazy.