Backend server not reachable (SharePoint Server 2010)
Applies to: SharePoint Server 2010, SharePoint Foundation 2010
Alert Name: Backend server not reachable
Event ID: None
Summary: The Word Viewing service application takes a Microsoft Office document as an input and produces a Portable Network Graphics (PNG) file, Microsoft Silverlight application, or a PDF file as output — the kind of output depends on the client application that requested the conversion.
Symptoms: One or more of the following symptoms might appear:
Users get an error every time they try to view a Word document that has not been viewed before.
Users open a file and cannot convert it to a different format — for example, they open a .doc file and cannot save it as a .docx file.
The Word Viewing service application writes errors to the event log.
Cause: One or more of the following might be the cause:
The Application Manager on the application server has unexpectedly stopped.
The Word Viewing service application stopped working.
The file conversion service stopped working.
Resolution: Restart Internet Information Services
Verify that the user account that is performing this procedure is a member of the local Administrators group.
Open a Command Prompt window and type the following at the command prompt: