Featured Article Secure Connection Failed when accessing Spider Operations Manager (Incident/KB/Change)
  • KB ID: AA-00813
  • Created: 07/03/2015 11:56 AM
  • Updated: 08/21/2015 10:53 AM
  • Views: 5648
  • 0 Ratings


Firefox fails to load web pages of OperationsManager, Incident  or Knowledgebase with the message "A Secure Connection Failed" (ssl_error_weak_server_ephemeral_dh_key).


Firefox 39 stops loading web pages which are using the Diffie-Hellman key exchange algorithm.


Disable the security check in Firefox 39.

To disable the security check follow these steps:

  1. Open an empty tab in Firefox
  2. Enter about:config in the address bar
  3. Click “I’ll be careful, I promise!
  4. Search for security.ssl3.dhe
  5. Double click both entries to set the value to false.
  6. Reload the webpage you wanted to visit.

More Information

Please contact our support (support@brainwaregroup.com | +41 41 748 22 11) for a server side solution


FireFox, 39, Secure Connection Failed, ssl_error_weak_server_ephemeral_dh_key




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