Fix ERR_SSL_VERSION_OR_CIPHER_MISMATCH Chrome Error: The main cause of this error is your PC not being able to establish a private connection with the website. The website is using an SSL certificate which is causing this error. An SSL certificate is used on the website which processes sensitive information such as Credit Card information or Passwords.

A secure connection cannot be established because this site uses an unsupported protocol.


Whenever you use the above website, your browser downloads the Secure Sockets Layer (SSL) security certificates from the website in order to establish a secure connection but sometimes the downloaded certificate is corrupted or your PC configuration is not matching that of the SSL certificate. In this case, you will see the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error and you might not be able to access the website but don’t worry we have listed few methods which will help you fix this issue.


  • Check if you can access other Https enabled website because if this is the case, then there is a problem with that particular website, not your PC.
  • Make sure you have clear your Browsers Caches and Cookies from your PC.
    clear browsing data in google chrome
  • Remove unnecessary Chrome extensions which might be causing this issue.
    delete unnecessary Chrome extensions
  • Proper connection is allowed to Chrome through Windows Firewall.
    make sure Google Chrome is allowed to access internet in firewall
  • Make sure you have a proper internet connection.


Make sure to create a restore point just in case something goes wrong.

Method 1: Disable SSL/HTTPS Scan

Sometimes antivirus has a feature called SSL/HTTPS protection or scanning which doesn’t let Google Chrome provide default security which in turn causes ERR_SSL_VERSION_OR_CIPHER_MISMATCH error.

Disable https scanning

bitdefender turn off ssl scan

To fix the problem, try turning off your antivirus software. If the web page works after turning off the software, turn off this software when you use secure sites. Remember to turn your antivirus program back on when you’re done. And after that disable HTTPS scanning.

Disable anitvirus program

Method 2: Enable SSLv3 or TLS 1.0

1.Open your Chrome Browser and type the following URL: chrome://flags

2.Hit Enter to open security settings and find Minimum SSL/TLS version supported.

Set SSLv3 in Minimum SSL/TLS version supported

3.From the drop down change it to SSLv3 and close everything.

4.Reboot your PC to save changes.

5.Now it might be possible you won’t be able to find this setting as it’s officially ended by chrome but don’t worry follow the next step if you still want to enable it.

6.In the Chrome Browser open proxy settings.

change proxy settings google chrome

7.Now navigate to advanced tab and scroll down till you find TLS 1.0.

8.Make sure to check Use TLS 1.0, Use TLS 1.1 and Use TLS 1.2. Also, uncheck Use SSL 3.0 if checked.

check Use TLS 1.0, Use TLS 1.1 and Use TLS 1.2

9.Click Apply followed by OK and restart your PC to save changes.

You may also check:

Method 3: Make sure your PC Date/Time is correct

1.Click on the date and time on the taskbar and then select “Date and time settings.

2.If on windows 10, make “Set Time Automatically” to “on.”

set time automatically on windows 10

3.For others, click on “Internet Time” and tick mark on “Automatically synchronize with Internet time server.”

Time and Date

4.Select Server “” and click update and “OK”. You don’t need to complete update. Just click OK.

Method 4: Disable QUIC protocol

1.Open Google Chrome and type chrome://flags and hit enter to open settings.

2.Scroll down and find Experimental QUIC protocol.

Disable Experimental QUIC protocol

3.Next, make sure it’s set to disable.

4.Restart your browser and you may be able to Fix ERR_SSL_VERSION_OR_CIPHER_MISMATCH Chrome Error.

Method 5: Clear SSL Certificate Cache

1.Press Windows Key + R then type “inetcpl.cpl” and hit Enter to open Internet Properties.

inetcpl.cpl to open internet properties

2.Switch to Content tab, then click on Clear SSL state and then click OK.

Clear SSL state chrome

3.Now click Apply followed by OK.

4.Reboot your PC to save changes.

Method 6: Run CCleaner and Malwarebytes

1.Download and install CCleaner & Malwarebytes.

2.Run Malwarebytes and let it scan your system for harmful files.

3.If malware is found it will automatically remove them.

4.In the “Cleaner” section, under the Windows tab, we suggest checking the following selections to be cleaned:

ccleaner cleaner settings

5.Once you’ve made certain the proper points are checked, simply click Run Cleaner, and let CCleaner run its course.

6.To clean your system further select the Registry tab and ensure the following are checked:

registry cleaner

7.Select Scan for Issue and allow CCleaner to scan, then click Fix Selected Issues.

8.When CCleaner asks “Do you want backup changes to the registry?” select Yes.

9.Once your backup has completed, select Fix All Selected Issues.

Method 7: Miscellaneous Fix

Chrome is updated: Make sure Chrome is updated. Click the Chrome menu, then Help and select About Google Chrome. Chrome will check for updates and click Relaunch to apply any available update.

update google chrome

Reset Chrome Browser: Click the Chrome menu, then select Settings, Show advanced settings and under the section “Reset settings,” click Reset settings.

reset settings

Use Chrome Cleanup Tool: The official Google Chrome Cleanup Tool helps in scanning and removing software’s that may cause the problem with chrome such as crashes, unusual startup pages or toolbars, unexpected ads you can’t get rid of, or otherwise changing your browsing experience.

Google Chrome Cleanup Tool

The above fixes will definitely help you Fix ERR_SSL_VERSION_OR_CIPHER_MISMATCH Chrome Error but if you are still experiencing the error then as a last resort you can reinstall your Chrome Browser.

Method 8: Reinstall Chrome Bowser

1.Press Windows Key + X then click on Control Panel.

control panel

2.Click Uninstall a program under Programs.

uninstall a program

3.Find Google Chrome, then right-click on it and select Uninstall.

uninstall google chrome

4.Reboot your PC to save changes and then open internet explorer or edge.

5.Then go to this link and download the latest Chrome for your PC.

6.Once the download is complete make sure to run and install the setup.

7.Close everything once the installation is finished and restart your PC.

You may also check:

That’s it you have successfully Fix ERR_SSL_VERSION_OR_CIPHER_MISMATCH Chrome Error but if you still have any questions regarding this guide then feel free to ask them in the comment’s section.

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