Hello, I am running Exchange 2013 CU1.  I am trying to configure Office Web Apps Server to work with OWA, but I can't get Exchange to pick up the configuration.  I have set the config using: Set-OrganizationConfig -WACDiscoveryEndPoint https://owas.domain.com/hosting/discovery.  However, my Exchange event logs never record anything in the Application logs of this, 140, 142, or even 141, never get logged.  I have tried iisreset, etc. but Exchange doesn't seem to be doing anything with it?  When I use OWA, the default viewer is used for attachments (not OWAS). Anyone know how to resolve this?  Thx!

• Edited by bcehr Monday, April 29, 2013 11:07 PM

I am having the same issue. No events are logged for 140,141,142 in event viewer after running the set-organizationconfig -wac... command. OWA keeps previewing files with WebReady Document Viewing instead of OWAS. I tried disabling WebReady from OWA, and forcing WACEnable on Public and Private and still nothing.

Any thoughts anyone!?

• Proposed as answer by Enrique Castrellon Tuesday, June 18, 2013 8:30 PM
• Unproposed as answer by Enrique Castrellon Tuesday, June 18, 2013 8:30 PM

I ran the Set-OrganizationConfig -WacDiscoveryEndpoint "https://officewebappserverFQDN/hosting/Discovery" commandlet. I did not see any events at the time. I made another Office Web App Server in the hopes that the first one was somehow mis-configured. Re-ran the commandlet, checked the Exchange Logs and still nothing. Left it alone until the next day (left at 5pm from work). Next morning (7am)... it was working! Go figure. I recommend to give your Exchange environment to replicate changes to the rest of the client access servers (assuming you have more than one).

• Edited by Enrique Castrellon Tuesday, June 18, 2013 8:37 PM commandlet error

For me, this kind of fixed itself.  After rebooting all servers (all DAG and all CAS) during a previous maintenance window, it all of a sudden it started working for us.

• Marked as answer by bcehr Tuesday, June 25, 2013 1:28 PM

i have same issue in my lab setup and i want to setup Office Web App Server for internal OWA users to render attachments.

Receiving Event 141

" There was a failure connecting to or otherwise retrieving Data from the Wac Discovery Service. We will fall back to stellent. Successfully retrieved configuration data from https://officewebappserver.domain/hosting/discovery, but retrieved discovery xml does not contain an external https net zone node "

i can resolve the following URL as well

https://officewebappserver.domain/hosting/discovery

Is is necessary to have external https net zone in your WAC discovery service.

Hi,

After restarting all Exchange 2013 CU2 CAS and Mailbox Servers it worked. However, no event id 141/142 in Application log on CAS servers.

Martijn