Community Tip - Fixing ERR SSL VERSION OR CIPHER MISMATCH in Google Chrome

CommunityTip
dash-crypto
#1

Error
Try the suggestions in this Community Tip to help you fix ERR SSL VERSION OR CIPHER MISMATCH in Chrome.

Background
A website using HTTPS performs a series of steps between the browser and the web server to ensure the certificate and SSL/TLS connection is valid. These include a TLS handshake, the certificate being checked against the certificate authority, and decryption of the certificate. If Chrome detects an issue, it might display “ERR_SSL_VERSION_OR_CIPHER_MISMATCH” which prevents access to the site.

Quick Fix Ideas

  1. Grey-cloud/deactivate Cloudflare so that the website uses the origin’s SSL certificate
  1. Re-start the process
  • Go to Crypto tab on your Cloudflare dashboard and scroll down to the bottom
  • Click the Disable Universal SSL
  • Wait for a few minutes then click the Enable Universal SSL
  1. Understand how the certificate works
    Certificates will only cover a single level of subdomains (.example.com, but not *…example.com):
  • Will work - www.example.com

  • Will work - example.com

  • Will work - test.example.com

  • Will NOT work - www.test.example.com

  • Will NOT work - staging.www.example.com

  1. Wait 24 hours, in most cases, this is a timing issue

Lite Reading

Background Resources
Knowledge Base
YouTube

Research The Issue
Community
Google

If You Need More Help
This community of other Cloudflare users may be able to assist you, if not, login to Cloudflare and then contact Cloudflare Support. When you contact support, make sure to include as much of this information as possible: error messages, screen shots, and/or HAR file(s).

Expert Comments Appreciated
This Community Tip will remain open for input from Community experts and those familiar with this issue. We really appreciate comments that start with words like: “The three things I always try”, or “Do this first” or “In my experience”.

This is a Cloudflare Community Tip, to review past tips click here.

Çevirmek…traduzir…翻译…traducir…Traduire…Übersetzen…:globe_with_meridians: Translate

4 Likes
erro ERR_SSL_VERSION_OR_CIPHER_MISMATCH
I keep getting a cipher mismatch error no matter what
My site uses an unsupported protocol
I use infinityfree hosting and I enabled cloudflare from c pannel and I received a mail for creating password but still my site is not opening
SSL still not working after 2days
Partner setup question
Error ssl version
Err_connection_closed
SSL issue causing Site Downtime
Cloudflare causing my site stop working
SSL not working throw cloudflare
WPEngine SSL
Community Tip - All Published Tips
ERR SSL VERSION OR CIPHER MISMATCH appears with Cloudflare, LetsEncrypt and Wordpress
Safari Can't Open Page
Not open my site connect Cloudflare
Wordpress admin ssl login issue
SSL Certificate Not Generated
SSL Certificate - Wildcart
Cloudflare says it is active, but 0 scores improvement at GT Metrix and CDN Score "F" (not active)
Después de configurar full zone cloudflare no puedo acceder a este directorio
Please wy blog has been down for 2 days now since i added it to cloudflare
I kThe client and server don't support a common SSL protocol version or cipher suite
Mismatch issue
Unsupported Protocol when using SSL from Caddy
SSL not active even after 3 days. It shows Authorizing Certificate
Error! Protocolo no admitido
pinned #2
closed #3

This topic was automatically closed after 7 days. New replies are no longer allowed.

Universal SSL Status