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Yves_Dekort's avatar
Yves_Dekort
Copper Contributor
Nov 15, 2023

outlook loses connection with Exchange

Hi,

My Outlook (2019) sometimes loses the connection with our Exchange server. And after a while (can range from a couple of minutes to a couple of hours) it regains the connection automatically.

During this time my desktop doesn't show any other problems with the network conenction (connected by wire).

 

I usually notice it when sending an email, the email will stay in the outbox. Outlook doens't mention it has lost the connection. That is something I only can see after closing outlook and restarting it.

 

A strange side-effect of this is that in the shared mailboxes I have, there appear some new folders: Yammer, Conversation Action Settings, Files, ... And when I click on one of these folders, it disappears again.

 

Any ideas on what can be causing this? Thx.

  • Hi Yves_Dekort,

    Please follow this action plan:
    - Make sure your Microsoft 365 apps are current (up to date)
    - Make sure fast start-up is disabled
    - Command Prompt (as administrator): sfc /scannow + reboot
    - Command Prompt (as administrator): DISM /Online /Cleanup-Image /RestoreHealth + reboot
    - Create a new mail profile and re-evaluate (https://support.microsoft.com/en-us/office/create-an-outlook-profile-f544c1ba-3352-4b3b-be0b-8d42a540459d)

    - If needed: reinstall the Microsoft 365 apps 

     

    Last resort: create and use a new Windows user profile

    • Yves_Dekort's avatar
      Yves_Dekort
      Copper Contributor
      Hi Matthieu,
      Already done all those things except for the last resort.
      And I was hoping to avoid needing to do that.
      • MathieuVandenHautte's avatar
        MathieuVandenHautte
        Steel Contributor

        Hi Yves_Dekort,

        In the past, issues could also be resolved by removing the Microsoft 365 license and re-adding it to the account, but I don't think this is the issue here.

        I suppose you don't have these issues with your account on other devices, such as other workstations, tablets, or smartphones?

         

        You could also create a Microsoft 365 support ticket. Microsoft support engineers can run diagnostic tools at the tenant level.

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