Can't Sign-in to Outlook on-line Only on 1 Computer

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Can't Sign-in to Outlook on-line Only on 1 Computer

28gauge 45

I am using Outlook on the web. I cannot sign in to Outlook or Microsoft only on 1 of my 3 computers. It was first giving me an error message and then the too many attempts (with the correct password). It's not affecting my account because I am not blocked on my other computers. Any help would be appreciated.

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Answer 1

Estrella721 36,545 Independent Advisor

Hi,

Since one device works, your account and password are fine. The other two are likely being blocked due to cached data, browser issues, or temporary security restrictions.

The “too many attempts” message means the system temporarily blocked that device/IP. Wait at least 24 to 48 hours before trying again, and avoid repeated logins during that time.
Please try using a different internet connection, then open an InPrivate window(Ctrl + Shift + N) in your browser and try logging in to your account using the link below:

https://account.microsoft.com/

Turn off any VPN, proxy, or browser extensions (especially security or ad blockers), as they can trigger sign-in issues.
Try different sign-in methods, such as using verification codes sent to your phone number or email instead of your password.

28gauge 45 Reputation points

2026-03-22T22:36:25.4533333+00:00

What's strange is when I go into sign-in activity on my other computer, it does not show a failed attempt. I've cleared the cache and tried a different browser. But, for some time now sign in activity stopped showing failed attempts. At first it was giving me a connection/internet error message and not a wrong password message.
Estrella721 36,545 Reputation points Independent Advisor

2026-03-22T22:39:45.1933333+00:00

Thanks for the reply. If you are not using a VPN, try using another internet connection. If not, I suggest waiting up to 48 hours for the repeated sign-in attempts to clear.
28gauge 45 Reputation points

2026-03-25T18:35:42.5033333+00:00

Tried again (over 48 hors later) insuring VPN was off; set Mcafee VPN to never turn on automatically on the one computer not letting me sign on. Denied again, too many incorrect attempts. The strange thing is, when I go to the sign-in activity report for Outlook on my other computer, it shows a successful log in for those denied attempts?

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Can't Sign-in to Outlook on-line Only on 1 Computer

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