Outlook login error 401

Ανώνυμο
2025-07-10T12:37:23+00:00

clientIPAddress 2a02:85f:e48f:c90c:483f:9273:e801:58a3 X-ClientId: DC94CDF11B994164B9AE2B4FA7A82A88 request-id b1832628-8741-255b-ad18-82b88a94113d X-Auth-Error System.Runtime.InteropServices.COMException X-OWA-Version 15.20.8901.24 X-FEServer AS9PR06CA0548 X-BEServer AM0P191MB0484 Date:10/7/2025 12:25:51 μμ

Dear Microsoft Support,

I am experiencing an issue when trying to access my personal Outlook Web App account via https://outlook.office.com. I consistently receive a 401 Unauthorized error, and the web app fails to load properly.

Here are some technical details that appeared in the error log:

  • Client IP Address: 2a02:85f:e48f:c90c:483f:9273:e801:58a3
  • X-ClientId: DC94CDF11B994164B9AE2B4FA7A82A88
  • Request ID: b1832628-8741-255b-ad18-82b88a94113d
  • X-OWA-Version: 15.20.8901.24
  • X-FEServer: AS9PR06CA0548
  • X-BEServer: AM0P191MB0484
  • Error: System.Runtime.InteropServices.COMException
  • Date/Time of Error: 10 July 2025, 12:25 PM (GMT+3)

I have already tried:

  • Signing in from a private browser window (incognito)
  • Using a different browser and device
  • Clearing cache and cookies
  • Ensuring my internet connection is stable

Despite this, the error persists.

Could you please assist me in resolving this issue?
Thank you in advance for your support.

Kind regards,
Tamara Brotzeli

Κλειδωμένη ερώτηση. Αυτή η ερώτηση μετεγκαταστάθηκε από την Κοινότητα υποστήριξης της Microsoft. Μπορείτε να ψηφίσετε για το αν είναι χρήσιμη, αλλά δεν μπορείτε να προσθέσετε σχόλια ή απαντήσεις ή να ακολουθήσετε την ερώτηση.

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  1. Ανώνυμο
    2025-07-10T15:10:24+00:00

    You are very much welcome Tamara, If you need anything else do not hesitate to reach us back. Have a good day!

    Ήταν χρήσιμη αυτή η απάντηση;

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  2. Ανώνυμο
    2025-07-10T13:38:17+00:00

    Thank you so much for helping me.

    I appreciate it a lot.

    Have a great day.

    Ήταν χρήσιμη αυτή η απάντηση;

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  3. Ανώνυμο
    2025-07-10T13:08:05+00:00

    Hi Tamara, I'm Kelvin an Independent Adviser. Unfortunately, a lot of users were also complaining about the same error recently.

    There seems to be an issue with the server at the moment and it would be best to wait a few hours and check the server status here: https://portal.office.com/servicestatus/ from time to time.

    Thank you for your kindness and understanding.

    Ήταν χρήσιμη αυτή η απάντηση;

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