App Control: CDC/SRS Connectivity Error: Could not establish trust relationship for the SSL/TLS secure channel

[#1]

Environment

• App Control Server: All Supported Versions
• Microsoft Windows Server: All Supported Versions

Symptoms

Error in Console

• "Collective Defense Cloud / Bit9 Software Reputation Service Unavailable"

Errors in "C:\Program Files (x86)\Bit9\Parity Server\Reporter\ParityReporter.log"

• System.Net.WebException: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. ---> 
  System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure.

Cause

Missing certificates in the application server's trust store

Resolution

1. Login to the App Control Server hosting with the Carbon Black Service Account
2. Go to: https://services.bit9.com/Services/search.aspx
3. Verify the certificate information by clicking the padlock icon and viewing the certificate information > Details tab > Copy to file
   • Depending on the browser, these steps may be worded slightly differently
4. Run > certlm.msc and verify the certificates are in Trusted Root Certification Authorities and Intermediate Certifications Authorities
5. If missing, download via web browser and import into the application servers trust store
6. Open an elevated command prompt to issue the following:

   iisreset
   net stop parityserver
   net stop parityreporter
   net start parityserver
   net start parityreporter

Additional Notes

App Control use Digicert signed certificates for SSL communication. Therefore the Digicert certificate must be present in the certificate trust store located on the App Control application server

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