Hi Azure,
Currently, I cannot access portal.azure.com.
I also reset MFA but it does not work.
Today, I tried again.
1/ Remove all MFA methods
2/ Setup use phone message authentication
3/ Access to portal.azure.com
4/ Portal ask code. Open the mobile and get code
5/ Fill the code
6/ Azure portal accept code but then, it redirects and show a dialog: "Approve sign in request"
Please help me.