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Office Web Apps Powerpoint Network Connectivity issue

Posted By:      Posted Date: April 10, 2011    Points: 0   Category :C#
 

Hi,

After installing and deploying office web apps on an existing sharepoint 2010 farm, I'm facing an issue with PowerPoint web App.

Namely when I try yo open a presentation in browser, after maybe 30sec I get the following message :  "Network connectivity has been lost. Check your network connection or try again later.". I looked into the SharePoint logs and I found multiple iterations of the following record :

Windows=False, Ntlm=True, Digest=False, Basic=False, Anonymous=False 85c0870e-4a45-4266-96be-c28495c122a7
04/08/2011 18:08:38.09  w3wp.exe (0x3720)                        0x0DA4 Office Web Apps                PowerPoint Web Services        d34t Medium   Checking parent web supported authentication of instance:192398217 Endpoint:http://***/_vti_bin/ppt/view.svc/jsonNegotiate 85c0870e-4a45-4266-96be-c28495c122a7

More interesting I found the following entry Windows Application Log:

WebHost failed to process a request.
 Sender Information: System.ServiceModel.ServiceHostingEnvironment+HostingManager/48657371
 Exception: System.ServiceM


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