Server temporarily unavailable in Skype for Business

June 2023 · 4 minute read
the server is temporarily unavailable skype for business office 365

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  • Skype for Business offers additional features over the standard Skype plan which is free. However, if you are coming back from a long vacation, you encounter “Server temporarily unavailable” error in Skype for Business.

    Several Skyper for Business users reported to have encountered this error in the Microsoft community.

    I cannot login to Skype for Business from my desktop application.  I get this error: Server is temporarily unavailable.  Though, I can login from my mobile devices and from my desktop using the OWA version.  But, not the application. 

    If you are also troubled by this error, here are a couple of troubleshooting tips fix the server is temporarily unavailable Skype for Business error.

    What can I do to fix Server is temporarily unavailable Skype error?

    1. Clear corrupted cache

    Server is temporarily unavailable Skype error

  • The cache can become corrupted if the application is not used for a long time. Try clearing the bad cache and check for any improvements.
  • Close Skype for Business app from the taskbar.
  • Press Windows Key + R to open Run.
  • In the Run dialogue box, type %localappdata% and click OK.
  • It will open the Windows File Explorer and navigate to the cache folder.
  • Inside the folder, navigate to the following location:
    C:UsersusernameAppDataLocalMicrosoftOffice16.0
  • Open the Skype for Business folder and delete sip_profilename folder.
  • Open the Tracing and delete all the files inside the folder. Only delete the files inside, and not the folder itself.
  • Close the File Explorer and launch Skype for Business.
  • Try signing in and check if the Server temporarily unavailable error is fixed.
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    2. Manually configure Skype for Business

    Server is temporarily unavailable Skype error

  • If the issue persists, try configuring Skype for Business manually. This should help you fix any configuration issues.
  • Launch Skype for Business.
  • Click on Options (gear icon) and select Personal.
  • Go to Advanced > Manua Configuration.
  • Enter the following details for the Internal and External server:
    Internal Server: sipdir.online.lync.com:443
    External Server: sipdir.online.lync.com:443
  • After configuring Skype for Business, repeat steps 2 again to clear the cache and check for any improvements.
  • Check service status

  • If the issue persists, try accessing the Skype for Busines from your smartphone.
  • Open the web browser on your computer and try accessing Skype for Business web app.
  • If the apps are not working, the issue is probably with the Skype service.
  • You can check the Skype status to get updates about the service.
  • 3. Update and reinstall Skype

    Server is temporarily unavailable Skype error

  • You can try to update Skype to the latest version to fix any bugs in the software.
  • Open Skype for Business and check if any update is available.
  • Download and install any pending updates.
  • Reinstall Skype

    Server is temporarily unavailable Skype error

  • If the issue persists, uninstall Skype for Business and reinstall it from the official website.
  • Press Windows Key + R to open Run.
  • Type control and click OK.
  • Go to Programs > Programs and Features.
  • Select Skype for business and click on Uninstall.
  • Once uninstalled, go to Skype for Busines download page.
  • Download the app and install.
  • Launch Skype for Business and check if the error Server temporarily unavailable is resolved.
  • By following the steps in this article you can fix server issues with your Skype for Business app in Windows.

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