Web Player fails to open a report that contains a Data Function, with error message "The request was aborted: Could not create SSL/TLS secure channel (ClientCertificateNoAccessPrivatekey)."

Web Player fails to open a report that contains a Data Function, with error message "The request was aborted: Could not create SSL/TLS secure channel (ClientCertificateNoAccessPrivatekey)."

Reports that contain a Data Function may fail to open in the Web Player when using the TERR Service to execute the data function's TERR script, with the following error message:

==============
Could not execute function call 'TestDataFunction'

The request was aborted: Could not create SSL/TLS secure channel (ClientCertificateNoAccessPrivatekey). The account 'Domainname\Username' do not have access to the private key of the certificate to use for the TLS
request to 'https:/testnmdemo.apac.com:9502/config'. 
Contact the adninistrator to make sure that the SSL certificate has been installed.

at

Spotfire.Dxp. Data.DstaFunctions.Executors. TereServiceClient.RunFunction (DataFunctionInvocation invocation)
  at Spotfire.Dxp.Data.DataFunctions.Executors.SPlusFunctionExecutor.
<ExecuteFunction>d_13.MoveNext()
  at Spotfire.Dxp.Data.DataFunctions.DataFunctionExecutorService.
<Executefunction>d_3.MoveNext()
==============

This error message is logged in the Web Player's Notification display, when the data function fails to execute against the TERR Service.

Cause : 

Possible cause of this error is when you try to access the TERR Service, the channel has not been successfully accessed by a user having access to the certificate private key.
  - Login to Node Manager Machine where TERR Service is installed.
- Open "Run" Window by pressing "Windows+R" buttons.
- Type "mmc.exe"
- It will open "Console" Window. 
- In this Console Window, click on File Menu --> Add/Remove Snap-in..
- Add Snap-in certificate for Local computer.
- Go to Console Root/Certificates/Personal/Certificates and right click on the certificate issued by "TIBCO Spotfire Signing CA" 
- Select All Tasks, and then click Manage Private Keys ... as shown below:


- Click OK.
- Grant read access to the certificate private key for the group "Authenticated Users" 
- Click Apply, and then OK to close the window.