ERR_SSL_VERSION_OR_CIPHER_MISMATCH is one of the most commonly encountered errors when it comes to web browsing. If your site is facing the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error, we’ve got the solutions. Get rid of the error in minutes, we’re not even kidding!

1. HowtoFix
ERR_SSL_VERSION_OR_CIPHER_MISMATCH
Error

2.  Get the
ERR_SSL_VERSION_OR_CIPHER_MISMATCH
Error off your site RIGHT NOW!
 Are your website visitors facing the
ERR_SSL_VERSION_OR_CIPHER_MISMATCH
error?
Of course, they are; why else would you be here.
This error is pretty common, and thousands of
users around the world face it every single day.

3.  We too faced the same error, but fortunately, we’re lucky to have SSL experts that
have spent years solving these errors.This was just another error and needless to
say, we’ve come up with accurate solutions.
 The reason behind ERR_SSL_VERSION_OR_CIPHER_MISMATCH error is
depreciation of the RC4 cipher.The RC4 cipher is deemed insecure, and Chrome
doesn’t want you or your users to be in danger.

5.  Enough with the backstory now. Let’s get straight to solving
ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. Here are the possible
problems along with the solutions. Keep doing one at a time until you resolve the
issue.

6. FixERR_SSL_VERSION_OR_CIPHER_MISMATCH
Error

7. Step 1:Go to
SSL Labs
 First, go to https://www.ssllabs.com/

8. Step 2:Check
yourSSL
certificate
Go toTest your server
Enter your hostname. For example,
yourdomainname.com
Click Submit

9. Step 3: Is your
SSL certificate
name
mismatching?
Often, certificate name mismatching could be
causing
ERR_SSL_VERSION_OR_CIPHER_MISMATCH
error.
As SSL Labs will show you, there are numerous
reasons behind certificate name mismatch.
Take a look at the next side to view the possible
reasons.

10. The site does not use SSL but
shares an IP address with
some other site that does.
The site no longer exists, yet
the domain still points to the
old IP address, where some
other site is now hosted.
The site uses a content
delivery network (CDN) that
doesn’t support SSL.
The domain name alias is for
a website who name is
different, but the alias was
not included in the certificate.
Check for each and try to fix
it.

11. Step 4:Are
you running
olderSSL/TLS
versions?
If you’re running an older version of SSL/TLS, it could be
causing ERR_SSL_VERSION_OR_CIPHER_MISMATCH error.
When you run your server check-in SSL Labs, you’d find
SSL/TLS versions under the configuration section.
Check if any of SSL 2, SSL 3 orTLS 1.0 has been enabled.
If it has been, disable it on your server ASAP. Do it now!

12. Step 5: Does
your server
support the
RC4 cipher?
The main reason why your Chrome throws up
ERR_SSL_VERSION_OR_CIPHER_MISMATCH error is that of the RC4 cipher.
Deprecated a long time ago, the RC4 cipher was deemed insecure.
When you run the scan in SSL labs, go to the Cipher Suites section to check RC4
cipher.
If your server supports it,
If you can’t turn it off, enable other ciphers.
We hope one of these solutions has helped you get rid of
the ERR_SSL_VERSION_OR_CIPHER_MISMATCHerror.

13. Important Resources to Read
 GoogleChrome SSL Error andTroubleshoot Guides
 SSLTechnical Errors with Solution
 Fixing Secure Connection Failed Error in Firefox

14. Thanks for
Reading
Blog: cheapsslsecurity.com/blog
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