Skip to main content
Chat with Biamp tech support
Biamp Cornerstone

Fixing a ROOT certificate error


This article provides an automated quick-fix method for addressing instances when the ROOT certificate either fails to install or is removed when a new Tesira Software installation is loaded. The article also provides a 15-step manual process in case the quick-fix option does not resolve the issue.


Problem symptoms

Symptoms indicating a ROOT certificate error following a new Tesira Software install:

  • The Tesira software takes an extended time to open.
  • Or, the only way to close the program is to forcibly end it using Windows Task Manager. 


The quick-fix method

  1. Click on the following link to download “” which contains the installer and cert file
  1.  Extract the files from the zip folder. Run the executable file certtest.exe which will automatically install the certificate.
  •  You should see the following Certificate Install tester popup appear when the installation completes.

   Cert Installed.png


The longform manual method

Manually install the root certificate if the quick-fix method fails to resolve the issue. Note: This method requires downloading and using the zipped Cert Test Tool mentioned in Step 1 of the quick fix.

  1. Open the RUN command with Ctrl + R in Windows.
  2. Run MMC.EXE.
  3. Click on File and select Add/Remove Snap-in.
  4. Click on Certificates and Add> to selected snap-ins:



  1. Click OK and expand the Certificates option under Console Root. 
  2. Click on Trusted Root cert option.
  3. Click Certificates and note whether Biamp Production Root CA is shown.

Biamp Production Root CA.png


  1. in systems with the error, this Biamp Production Root CA is not shown.
  2. To Install, use the Biamp_Production_Root_CA.crt file downloaded in "Quick fix method" in this article.
  3. On the toolbar, select Action > All Tasks > Import.


  1. Click Next.
  2. Browse the imported file location and click on the file.
  3. Use the Trusted Root Certification Authorities store option for placing the imported file.  


  1. Click Next, then click Finish.
  2. Save the settings to Console.


The certificate should now be visible in the Trusted Root Certificates list. The Tesira software should work normally.