fix ERR_SSL_Version_Or_Cipher_Mismatch Error

How to fix ERR_SSL_Version_Or_Cipher_Mismatch Error

ERR_SSL_VERSION_OR_CIPHER_MISMATCH is related to the out-dated security code that is used by the site. Nowadays, most of websites use secure and encrypted connections. All these connections rely on SSL Certificate. When the browser doesn’t trust the SSL certificate it sees, it directly displays this error on your screen.


Browser doesn’t believe this certificate because you are using an old Operating System (OS) or old Browser. Your antivirus or firewall is blocking the website can also be a reason for this error, which forces Google Chrome to display this error. However, this error sometimes is only trying to prevent you from accessing harmful websites.

The error might interpret as an SSL version error or encryption mismatch. But it happens in the following cases:

  • When a user tries to connect to a website that uses SSL encryption certificate and secures HHTPS to access and exchange for information, in that case, the website addresses always stats with “https” instead of HTTP along with a lock icon on the left side of the address bar.
  • ERR_SSL_VERSION_OR_CIPHER_MISMATCH may also develop on websites that use SSL certificates with Server Name Indicator (SNI) and ECDSA. The ECDSA uses low-cost SSL certificates, which cause the described malfunction.

Note: ECDSA is a public key algorithm for a digital signature creature.

  • Some latest SSL certificates components do not support old operating systems in Internet Explorer and Chrome browsers.
  • When the operating system registry is damaged or corrupted by a virus. 
  • When antivirus blocks access to the site.


There are many ways to solve this issue. Some of them are:

Method 1: Update your Browser

Follow the following steps to update browser are:

Step#1 – Open Google Chrome.

Open google chrome and select the menu icon.

Step#2 – On the top right corner, click on the “Eclipse” icon.

Note: If you have the latest version of Chrome, then this option will not appear. 

Step#3 – Click on the “Update Chrome” option from the drop-down list.

Click on the “Update Chrome”

Step#4 –Reopen Chrome.

Note: Normally, Chrome automatically updates on its own, but due to some reasons, an update can be pending. 

Method 2: Change Google Chrome Security Setting

Follow the following steps to change Google Chrome security setting is:

Step#1 – Open Chrome. Type “chrome://flags” in the URL or address bar.

type chrome flags in URL

Step#2 – Search for minimum SSL/TLS version support available for your Chrome version.

Step#3 – Choose “SSLv3” and restart your Chrome.

Change Google Chrome Security Setting to fix ERR_SSL_Version_Or_Cipher_Mismatch Error
Choose SSLv3

Step#4 – Reopen the page which you couldn’t access earlier.

Step#5 – Open the new page, which says your connection is not private. Click on the advanced link.

connection is not private. Click on the advanced link.

Step#6 – Select the “Proceed” option for your desired website.

Note: Your Chrome should accept the SSLv3 certificate version.

Method 3: Enable TLS 1.3

Follow the following steps to enable TLS 1.3 are:

Step#1 – Open Chrome. Type “chrome://flags” in the URL or address bar.

type chrome flags in URL

Step#2 – Press “Ctrl+ F.” Search for “TLS 1.3”. 

Press “Ctrl+ F.” Search for “TLS 1.3”.

Step#3 – If the option is disabled, enable it from the drop-down menu.

Enable TLS1.3 to to fix ERR_SSL_Version_Or_Cipher_Mismatch Error
Enable TLS1.3

Step#4 – Restart your Browser. Try to access that website again.

Method 4: Disable QUIC Protocol

Follow the following steps to disable the QUIC protocol if the client and server don’t support a common SSL protocol version or cipher suite.

Step#1 – Open Chrome. 

Open google chrome

Step#2 – Type “chrome://flags” in the URL or address bar.

type chrome flags then hit enter.

Step#3 – Search “Experimental QUIC Protocol.”

Click on Experimental QUIC Protocol
Experimental QUIC Protocol

Step#4 – Enable it and restart your browser.

Method 5: Delete Browsers Cache and Cookies

Follow the following steps to delete browsers cache and cookies are:

Step#1 – Open Chrome. Press the “CTRL + H” on the keyboard.

Press the “CTRL + H” on the keyboard.

Step#2 – History of all the accessed web pages appears. Select all the checkboxes from the browsed history page.

Step#3 – And finally, click on “Clear browsing data.”

Click on Clear Browsing Data
History Tab

Step#4 – Now, restart the browser and check whether the error resolves or not.


Step#1 – Open Chrome. Press the “CTRL + H” on the keyboard.

Press the “CTRL + H” on the keyboard.

Step#2 – On the left-hand side of the web page, click on the “Clear Browsing Data” option.

clear the browsing history for windows

Step#3 – A new panel opens up. Select the time range.

A new panel opens up. Select the time range.

Step#4 – Now select the checkbox in front of “Browsing history,” “Cookies and other site data,” and “Cache images and file.”

Click on Clear Data to fix ERR_CACHE_MISS in Google Chrome
Click on Clear Data

Step#5 – Then click on the “Clear data” button and restart the browser and check whether the error resolves or not.

Method 6: Clear Windows’ SSL Certificate Cache

Follow the following steps to clear Windows’ SSL certificate cache are:

Step#1 – Open Control Panel.

Open Control Panel
Control Panel

Step#2 – Under the Network and Internet section, search for the “Internet” option.

Click on Internet Option
Network and Internet Section

Step#3 – Open the “Content” tab. Click on the “Clear SSL state” button.

Click on Content tab then click on Clear SSL state
Click on Clear SSL State

Step#4 – Press the “Ok” button. Then the “Apply” button.

Step#5 – Restart your Browser. 

Method 7: Use a New OS

Sometimes an old Operating System (OS) may fall out of date with everyday developing technology such as TLS 1.3 and the latest Cipher Suites as old browsers are not compatible in supporting them. You are recommending upgrading to newer OS if possible.

Use a New OS

Method 8: Temporary Disable Antivirus

Antivirus is something that everybody needs to protect their computers form different kinds of viruses. If you have an antivirus installed on your computer and encounter ERR_SSL_VERSION_OR_CIPHER_MISMATCH error.

Temporary Disable Antivirus

Ensure your antivirus is not working, or you can temporarily disable it. Sometimes uninstalling the Antivirus program, mostly McAfee, resolves the problem.

Method 9: Reinstall Google Chrome Bowser

Follow the following steps to reinstall Google Chrome Browser are:

Step#1 – Press the “window” button and search control panel.

Press the “window” button and search control panel.

Step#2 – Under the programs section, click on the “Uninstall a program” option.

Click on Uninstall a Program
Control Panel Window

Step#3 – Search for “Google Chrome” Right-click on it and select the “Uninstall” option.

Select Uninstall Option to Reinstall the Google Chrome Browser
Uninstall Google Chrome

Step#4 – Reboot your computer.


Step#5 – Open any other browser and download the latest Chrome version.

Update Chrome Browser
Update Chrome Browser

Step#6 – Once the download is complete, run, and install Google Chrome.

run, and install Google Chrome.

Step#7 – After installation is complete, reboot your PC again.


Final Verdict

In most cases, the ERR_SSL_Version_Or_Cipher_Mismatch issue occurs within the Google Chrome browser. It happens when Chrome does not find a trusted certificate for any website you are trying to access.

The most obvious and most efficient tool for getting rid of this error is using the Firefox browser when working with the sites on which this error occurs. If you want to know the root cause and fix it, you can get in touch with browser support professionals through the toll-free number.

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