Office Web Apps is not working

Question

   Hi,
     We have tried to deploy Office Web Apps Server but, after a number of tests, we haven't been able to view PowerPoint presentations. We tested "everything" but it didn't work.
     Finally, to simplify and focus the problem, we just deployed Office Web Apps Server "on its own", that is: just Internal URL, HTTP, Open From URL Enabled and sharing docs from a shared folder in the same server. So we have:
     \\wacserver\share\<Docs> (Excel, Word and PowerPoint)
     http://wacserver
     They work both "/hosting/discovery" and "/op/generate.aspx".
     If we try to view Excel doc, it works. If we try to view Word or PowerPoint, id doesn't work.
     For PowerPoint, it appears the PowerPoint Web Apps frame (FILE, START SLIDE SHOW, SLIDE - OF -, NOTES...) and, in the center, an animation 
"PowerPoint Web App .....". After a couple of minutes, it stops with "Either you've lost network connectivity or our server is to busy to handle your request".
     What we have seen from different sources:
FIDDLER
======
     /op/view.aspx?... Response 200
     /p/PowerPointFrame.aspx?... Response 200
     /p/imagehandler.ashx?... Response 202
     13 petitions to /p/ppt/view.svc/jsonAnonymous/GetPresentation Response 200
PROCESS MONITOR
==============
     There were some folders and registry keys Network Service was trying to access with ACCESS DENIED response. We gave it permissions and they disappeared.
     SYSTEM is trying to access some registry keys (SpellingWcfprovider.exe => HKU\S-1-5-18, ImagingService.exe => HKLM\Software\Microsoft\Windows NT\CurrentVersion\Image File Execution Options, and 2 or 3 more). It gets an ACCESS DENIED
but SYSTEM, we have checked, has "Full control" permissions in those keys or folders.
     These errors appear by Office Web Server running itself, although we are not making a PowrPoint file request.
ULS
===
     Several times, it tries to find the PowerPoint presentation in the caché, doesn't find it, manage to get it but, when trying to put it in the cache, it receives a disk space error:
Determined file name [PowerPoint.pptx] from [\\wacserver\share\PowerPoint.pptx]
AFileFetcher: Starting Unc download at [\\wacserver\share\PowerPoint.pptx]
Begining UNC Download for [\\wacserver\share\PowerPoint.pptx]
Reading next block of bytes for [\\wacserver\share\PowerPoint.pptx]
End reading block of bytes for [\\wacserver\share\PowerPoint.pptx]
Reading next block of bytes for [\\wacserver\share\PowerPoint.pptx]
End reading block of bytes for [\\wacserver\share\PowerPoint.pptx]
AFileFetcher: Done downloading file. [\\wacserver\share\PowerPoint.pptx]
Downloaded file from final URL [\\wacserver\share\PowerPoint.pptx] with SHA256 [Y/whX0EzCZJQdHym/OPrMdrNVg0h8SwrC0TehaKIQdU=]
AFileFetcher: Will cache web file info to memory cache. [\\wacserver\share\PowerPoint.pptx]
Starting WriteStreamToDiskCache
Creating channel to DiskCache: http://wacserver:809/diskcache/DiskCache.svc
MachineTransfer [SourceMachine:wacserver, SourceMachineVersion:15.0.4543.1000, TargetMachine:wacserver, TargetMachineVersion:15.0.4551.1011, Method:DiskCacheService.PutCacheData]
PutCacheData: [167F6AC792AE9B53BEA7CD135A35C18F0710CF5916C49DD5804C9E29CF9149CA55D1C8D1AD526B45B91801E1502B2BCD, d1c8d155-52ad-456b-b918-01e1502b2bcd, 50758, wacserver]
PutCacheData: Writing to C:\ProgramData\Microsoft\OfficeWebApps\Working\d\1CA\167F6AC792AE9B53BEA7CD135A35C18F0710CF5916C49DD5804C9E29CF9149CA55D1C8D1AD526B45B91801E1502B2BCD
Not enough disk space to write.  Sleeping once.
Not enough disk space to write.  Giving up.
PutCacheData Response: [False]
     The cache folder has enough disk size and PowerPoint.pptx file is just 30 KB.
     It repeats this flow 3 times (as for the first HTTP requests).
     During the 2 minutes test (until it fails) there are 14 traces like:
Failed to create process object for pid 7780 with exception System.ArgumentException: Process with an Id of 7780 is not running.     at System.Diagnostics.Process.GetProcessById(Int32 processId)     at Microsoft.Office.Web.Common.RequestPipe.ProcessManager.TryGetProcessObject(Int32
pid).
     We have tried a number of things but none has worked. The farm has just one server and it says ist's unhealthy. We have Windows Server 2008 R2 SP1. We have read some ways to fix the health, like HTTP Activation feature, but it only works
for Windows Server 2012 as fas as we know.
     Has anybody experienced something like this or have a posible solution? Office Web Apps Server should be so easy to deploy but we have spent a lot of time with this.
     Thank you very much. Your help will be very appreciated.
     Kind regards.

Answer 1

Hi John,
According to your description, my understanding is that you cannot view the PowerPoint files in Office Web Apps in SharePoint.
Was there any error when you view the PowerPoint files in Office Web Apps?
You can troubleshoot the error following the link below:
http://technet.microsoft.com/en-us/library/ff431687.aspx#tshoot
I also recommend to re-configure SharePoint to use the Office Web Apps Server to see if the issue still occurs.
http://technet.microsoft.com/en-us/library/ff431687.aspx#ConfigureMain
Best regards.
Thanks
Victoria Xia
TechNet Community Support