We are trying to get Office Web App integration completed with Exchange 2013 SP1. We have setup our OWA farm and this is working correctly as we also use Lync, and powerpoint sharing it working.
The issue we face is that Exchange seems to be completely ignoring the fact that we have configured the WACDiscoveryURL .. this has been configured, but we are not getting any event 141 or 142 in the logs that indicate either success or failure to connect.
When trying to open a powerpoint document from OWA, we get the standard Outlook Web App rendering of the document rather than the Office Web Apps.
Before the upgrade to SP1 we did see the office web app load, although not completely as there were some other issues, now its as if its not even configured.