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alangibb1966's avatar
alangibb1966
Copper Contributor
Jul 10, 2025

Getting an error when I try to login to Outlook

UTC Date: 2025-07-10T07:42:38.417Z
Client Id: 593225EA5D2548D590151B1B484F1999
Session Id: d3be351d-ae70-4567-8340-c981190be4f1
Client Version: 20250704003.04
BootResult: fail
Back Filled Errors: Unhandled Rejection: Error: 401:undefined|undefined:undefined
err: Error: 401
esrc: StartupData
et: ServerError
estack: Error: 401
at Object.w [as createStatusErrorMessage] (https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mailindex.5ec1239e.js:1:1039)
at https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mailindex.5ec1239e.js:1:163185
st: 401
efe: LO4P123CA0379

2 Replies

  • rogerreed's avatar
    rogerreed
    Brass Contributor
    Jul 15, 2025

    Same here, I’m getting the exact same 401 error when trying to log in. Cleared cache, tried different browsers no luck. Hope MS fixes this soon!

  • Magicagon212's avatar
    Magicagon212
    Iron Contributor
    Jul 14, 2025

    Delete the Outlook account and re-add it, then go to Programs and Features in the Control Panel and fix the Office installation, and it's ok!

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