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Home > Success Center > Patch Manager > Patch Manager - Knowledgebase Articles > Error when Patch Manager synchronizes the third party updates catalog

Error when Patch Manager synchronizes the third party updates catalog


When Patch Manager attempts to synchronize the third party updates catalog, the following error displays:  

Unexpected website connection issue when trying to download
The underlying connection was closed: Could not establish trust
relationship for the SSL/TLS secure channel.


All Patch Manager versions


  • The certificates are missing from the Certificate Authority.
  • The certificate expired or need to be updated.


Install the Go Daddy Class 2 Certification Authority certificate to Trusted Root Certification Authorities

  1. Open Internet Explorer.
  2. Navigate to Options > Content > Certificates > Trusted Root Certification Authorities.
  3. Locate the GoDaddy certificates. There should be two certificates.
    If the certificates are missing:
    1. Navigate to
    2. Click Continue to this website (not recommended) to continue to the site.
    3. Click the certificate error icon on the right side of the URL and then click View certificate.
    4. Click the Certification Path tab, select the certificate at the top of the list and click View Certificate.
    5. Click Install Certificate and place it in the Trusted Root Certification Authorities store.
    6. Once it is installed, click OK to go back to the previous certificate window.
    7. Click the General tab.
    8. Install that certificate to the Trusted Root Certification Authorities.
  4. Open mmc.exe.
  5. Add a Certificates (Local Computer) snap-in to double check that the certificates are populated in the Trusted Root Certification Authorities folder.

Install the VeriSign Class 3 Public Primary Certification Authority - G5 certificate to the Trusted Root Certification Authorities

  1. In Internet Explorer, navigate to:[Your_Activation_Key]
  2. Download the following file:
  3. Right-click the file and select Properties.
  4. Click the Digital Signatures tab.
  5. Highlight the SolarWinds, Inc. signer.
  6. Click Details and then click View Certificate.
  7. Click Install Certificate.
  8. Place the certificate in the Trusted Root Certification Authorities store.
  9. Open mmc.exe.
  10. Add a Certificates (Local Computer) snap-in to double check that the certificate is populated in the Trusted Root Certification Authorities folder.
  11. Run gpedit.msc.
  12. Navigate to Computer Configuration > Administrative Templates > System > Internet Communication Management > Internet Communication Settings. 
  13. Check whether the Turn off Automatic Root Certificates Update option is set to Disabled.
  14. If set to Disabled, select Enable.
  15. Make sure the change has replicated, and then re-check the issue.


(© 2016 GoDaddy Operating Company, LLC. All Rights Reserved.  Content available at, obtained on June 6, 2016.)


Please note, any content posted herein is provided as a suggestion or recommendation to you for your internal use. This is not part of the SolarWinds software or documentation that you purchased from SolarWinds, and the information set forth herein may come from third parties. Your organization should internally review and assess to what extent, if any, such custom scripts or recommendations will be incorporated into your environment.  You elect to use third party content at your own risk, and you will be solely responsible for the incorporation of the same, if any.



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