Getting 2400 error in outlook application

Anonymous
2023-04-11T09:25:43+00:00

Hi,

Something went wrong [2400] error in outlook application. Web outlook is working fine.

Tried outlook repair, reinstallation, new profile creation and cleared password from device credential manager still issue persist. Seems like Microsoft issue. Screenshot attached

Please share any troubleshooting steps for permanent fix

Thanks

Anand

Outlook | Windows | Classic Outlook for Windows | For home

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2023-08-29T11:02:39+00:00

    Hello,

    Getting the same error, can someone advise please.

    Thanks,

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  2. Anonymous
    2023-08-31T18:45:14+00:00

    I had the same issue, but I managed to fix it.

    On Outlook application, go to File > Office Account, check whether your affected email address is signed in under Account (on the left side).

    If it is not, then try click Switch account and check whether your affected email address account is there.

    Most likely it is not, just add and sign in and it should be fixed.

    You can switch back to your original account after you added the affected email address account.

    Worked for me also! Had to close out of Outlook and open again afterwards. Thanks!

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    6 people found this answer helpful.
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  3. Anonymous
    2023-09-01T04:47:30+00:00

    Thank you! I have been fighting with this for hours. The link you provided led to a solution that involved deleting a registry entry.

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    1 person found this answer helpful.
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  4. Anonymous
    2023-09-01T16:37:14+00:00

    Hi Darpan,

    Thanks for your reply. I am currently experiencing the same issue but do not know how to send a private message with a reply with the requested information.

    Do you have other suggestions?

    Jacinda

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  5. Anonymous
    2023-09-02T04:59:33+00:00

    klaw48 solution worked for me. Thanks all!

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