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Microsoft 2 Factor Verification / MFA hiccups can be caused by desynced authenticator apps, cached browser credentials, network or mobile data carrier interruptions.
If you are stuck in a login loop or not receiving push notifications try selecting "Sign in another way" at the login prompt to use an alternate / backup method like SMS or phone call verification.
If you are not receiving your Microsoft MFA authentication prompts, SMS text code, or phone call verification? Try these three quick steps to get back up and running:
Check Your Mobile Device Connection: Switch from cellular data to Wi-Fi (or vice versa) on your phone to force a stuck notification through.
Fix a Time Sync: MFA relies on precise timing. Ensure your smartphone's clock is set to update automatically in your system settings.
Clear Browser Cache: Old login data can cause SSO loops. Clear your browser history or try logging in via an Incognito window on your device.
STILL Can't get passed the 2-Factor Authentication / MFA ? - Open a ticket for MFA Issue