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

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  1. Anonymous
    2023-04-26T17:22:44+00:00

    So not sure if this helps anyone but for me what fixed it was uninstalling/reinstalling outlook. The key was to add the account causing this error first and then adding my additional accounts after that.

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  2. Anonymous
    2023-04-26T16:43:02+00:00

    Hi, I'm experiencing exactly the same. I use Office 365 and access all email accounts via Outlook. Others are working fine but Outlook.com address is throwing up the same error. I can access it via the web with no issues and on my iPhone with no problem. It's just not working on my PC. Infuriating! I have reset my password and it seems to have triggered from that today 26/04/23. Any solution will be gratefully received. I removed my outlook.com account and have tried to add it and no success.

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  3. Anonymous
    2023-04-26T14:27:00+00:00

    Same error has been occurring here on my Surface Pro for the past couple days now, and ironically, it's happening with just my personal Outlook account in Outlook 365 Desktop out of the total of 12 personal/work/community email accounts I have setup in it.

    Clearly microsoft has broken something on their end...

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  4. Anonymous
    2023-04-26T12:00:13+00:00

    Same issue since yesterday...

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  5. Anonymous
    2023-04-25T23:08:49+00:00

    Same issue here.

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