Service Unavailable


Hello everyone,

Today, I’ll talk about a « To Remember ».

Sometimes after an action on the SharePoint server you receive the following error message trying to access your SharePoint
By “action” I mean for example:

  • Installation / deployment of a package
  • Updating a cumulative update

If it happens, check in the “Internet Information Services (IIS) Manager” that pool applications are started!

Often, one or more of them will not restart properly.
Important: make this check on all front-ends of your SharePoint farm!


To see this manager, enter “inetmgr” in the command prompt of the server (windows key + R shortcut), then click on your server on the “Application pool” tab.



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