microsoft outlook error 401 across multiple devices

Colin Shipp 20 Reputation points
2025-07-10T07:45:31.8566667+00:00

for personal outlook use. error 401 on laptop using email and on mobile and multiple browers. tried to enter my email in outlook tool for it to check my account and it said something like ...not able to connect with (whatever) try again later.

on my mobile when i enter my correct username and password, i still get problems with validating server settings ....i know my personal details are correct. it says on my mobile "Problem with account setup Your username or password is incorrect" which i know is wrong. unless hacked i guess, could it be if so what do i do?

can anyone advise as i dont get why

Outlook | Windows | Classic Outlook for Windows | For business
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Answer accepted by question author
  1. Jayden-P 12,705 Reputation points Microsoft External Staff Moderator
    2025-07-10T08:19:33.5733333+00:00

    Hi @Colin Shipp

    Thank you for posting your question in the Microsoft Q&A forum. 

    First, I apologize for this inconvenience you are facing.

    Microsoft has confirmed this is a known issue and we are actively investigating it.

    You can track the status of this error via Microsoft service health status

    User's image

    Please wait while we resolve this issue.

    Thanks for your patience.

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