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Mark @accountprotection.microsoft.com as a trusted sender to receive your verification code in your inbox. Randomly still getting the 'can't find this page' error upon first connection.. When you close it and reconnect, it then goes through as expected. It's also intermittent, sometimes goes in first time round.. Other times get the error, close the window, reconnect then it works.

• I checked the user specific settings and they are ALL disabled.
• Will log a tac also as not finding many docs on this issue on pan site atm.
• Mark @accountprotection.microsoft.com as a trusted sender to receive your verification code in your inbox.
• I’d start by checking if those users are somehow excluded from security defaults or if there’s a conditional access policy overriding them.
• If you've mistakenly made many sign-in attempts, wait until you can try again, or use a different MFA method for sign-in.

I can't sign in after multiple attempts

Should you not wish or not be able to use an app you can choose the phone (text) or alternative phone method and provide a phone number, this data is only used to support the security of your account. To change the language, you need to remove it and re-add the security info to your account using the steps above. If you don't know, or have forgotten your password, and you don't have access to any of your security info for verification, follow the steps below to recover your account. There may be heavy compromised traffic coming from your geographical location and to protect you, we may also not deliver codes to your account as fast FixTechGuide support For Office 365 as we would like. While rare, these issues will be automatically resolved after a certain period of time. There are a number of possible explanations for why verification codes don't always arrive.

Further help and support

Outlook still keeps prompting ONLY with the old school grey box. It's indicating that the MFA must be done, but nothing's opening/prompting for it. OWA, Windows sign-in, and Outlook mobile Microsoft Outlook Email Repair Tool Online app proceed to the MFA registration and/or use.

I've lost access to my security info

When I switch from company's Teams to client's, I am asked to log in. The log in prompt shows a code and to authenticate it in Microsoft Authenticator. There is no prompt/ notification in my Microsoft Authenticator to put the number.

Troubleshooting common problems with Multi-Factor Authentication (MFA)

The error could be caused by malicious activity, misconfigured MFA settings, or other factors. To investigate further, ask an IT administrator to look at the Microsoft Entra sign-in logs. I’d start by checking if those users are somehow excluded from security defaults or if there’s a conditional access Outlook Stuck on Synchronizing Folders policy overriding them. Also, make sure they’re using apps that support 2FA—older clients sometimes skip the prompt.

What Our Users Say

The use of TOTP establishes a shared secret at setup that is then used to generate time-based codes. Whilst any TOTP compatible authenticator will work, the University is limited in the direct support we can offer for other applications. Microsoft Entra multifactor authentication detects unusual activity like repeated sign-in attempts, and may prevent additional attempts to counter security threats. If you've mistakenly made many sign-in attempts, wait until you can try again, or use a different MFA method for sign-in. If you suspect someone else is trying to access your account, contact your IT administrator.





We understand this can be frustrating and disruptive, but here are some of the reasons behind blocks, and guidance on how to overcome them. Will log a tac also as not finding many docs on this issue on pan site atm. However i fear this might only be for BYOD / third parties and not applicable to Azure AD joined devices ie company laptops..