Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

keep getting SSL_ERROR_NO_CYPHER_OVERLAP when trying to access HTTPS:// site

  • 2 பதிலளிப்புகள்
  • 2 இந்த பிரச்னைகள் உள்ளது
  • 20 views
  • Last reply by Kohei

When accessing an HTTPS:// site I get this error: Secure Connection Failed

An error occurred during a connection to 172.17.35.38:7002. Cannot communicate securely with peer: no common encryption algorithm(s). Error code: SSL_ERROR_NO_CYPHER_OVERLAP

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

Any suggestion are apreciated

When accessing an HTTPS:// site I get this error: Secure Connection Failed An error occurred during a connection to 172.17.35.38:7002. Cannot communicate securely with peer: no common encryption algorithm(s). Error code: SSL_ERROR_NO_CYPHER_OVERLAP The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem. Any suggestion are apreciated

All Replies (2)

Does this occur only for one particular address, or for many sites?

The IP address in the error message 172.17.x.y is an internal address used within a network, rather than a web address. Most likely that refers to an application server or proxy server (or other filtering device/service). It is listening on port 7002 according to the information Firefox displayed.

Are you in a company that might be able to provide more information about that system/device?

As of Chrome 53 and Firefox 50, you can no longer enable RC4. You should contact your IT admin to fix the issue.