Fixing Office Web Apps Network Connectivity has been lost error


If you’re getting “Network connectivity has been lost. Check your network connection or try again later.” error while viewing Word or PowerPoint files in browser and you are sure that there is no network issue, it can be solved by increasing the permission level of service applications. You can run the following PowerShell script to apply this changes. You have to do an “IISRESET” after running this script to make changes become effective.

Note

Office Web Apps must be installed on a farm which uses a domain controller. For standalone installations this fix will not work. Before running this script please check the name of “Word Viewing Service Application“, it may differ in your system. You can check it either from central administration site or by running “Get-SPServiceApplication” command.

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