Office Web Apps - Office Web Apps was unable to find the specified certificate

Question

Hello,
Let me start by saying I did not see a forum listed for Office Web Apps and figured the SharePoint forum would be the second best place to post this.  With that said, here's my issue...
I installed OWA 2013 on a Windows Server 2012 (not R2) VM and installed all the prereqs as described here: http://technet.microsoft.com/en-us/library/jj219455(v=office.15).aspx  Since this is a test environment, I'm planning on using a self-signed
cert which appears to be supported based on info found here: http://technet.microsoft.com/en-us/library/2e147f11-6f47-46bc-90bf-b2f179958d11(v=office.15)#certificate.  
I created the cert using the following command:
New-SelfSignedCertificate -DnsName owa.test.local -CertStoreLocation cert:\LocalMachine\My
I then edited the cert's properties in the Cert Manager MMC snap-in and added a friendly name of "2014_OWA_Cert".  I then proceeded to try and create the OWA farm by running:
New-OfficeWebAppsFarm -InternalUrl "https://owa.test.local" -CertificateName "2014_OWA_Cert" -EditingEnabled
This produces the following error:
New-OfficeWebAppsFarm : Office Web Apps was unable to find the specified certificate.
At line:1 char:1
+ New-OfficeWebAppsFarm -InternalUrl "https://owa.test.local" -CertificateNa ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (:) [New-OfficeWebAppsFarm], ArgumentException
+ FullyQualifiedErrorId : CertificateNotFound,Microsoft.Office.Web.Apps.Administration.NewFarmCommand
What gives?  

Answer 1

Hi Waqas
Thanks for your help with this. I had a look at both posts, the URL works fine from the WAC server and I am not using a System account to test docs.
Also, this is a production site that is accessible over the Internet, so we are using https therefore the WOPIZone is external-https.
Issue #3 in the above blog link does not reflect the same error I see on my servers.
I also had a look at the information in this link: http://technet.microsoft.com/en-us/library/ff431687.aspx#oauth
Problem: You receive a "Sorry, there was a problem and we can't open this document" error when you try to view an Office document in Office Web Apps.
If you added domains to the Allow List by using the
New-OfficeWebAppsHost cmdlet, make sure you’re accessing Office Web Apps from a host domain that’s in the Allow List. To view the host domains in the Allow List, on the Office Web Apps Server open the Windows PowerShell prompt as an administrator and run
the Get-OfficeWebAppsHost cmdlet. To add a domain to the Allow List, use the
New-OfficeWebAppsHost cmdlet.
I have not added any domains to the Allow list so this did not help either. Should I add the domain?
Any further help with this is much appreciated.
Thanks again.
Yoshi