Sometimes when browsing through the internet, we may come across a website that shows err_ssl_version_or_cipher_mismatch Chrome. It can be frustrating when you get this kind of error.

Fortunately, there are many ways to err_ssl_version_or_cipher_mismatch chrome bypass. In this blog, we will discuss chrome err_ssl_version_or_cipher_mismatch, its causes, and how to fix the net::err_ssl_version_or_cipher_mismatch. 

Moreover, we will also have a look at err_ssl_version_or_cipher_mismatch Cloudflare and how you can err_ssl_version_or_cipher_mismatch hide details. 

So, let’s get started without any further details. 

What Is the ERR_SSL_VERSION_OR_CIPHER_MISMATCH Error?

Source: kinsta.com

The ERR_SSL_VERSION_OR_CIPHER_MISMATCH error is a common SSL-related error that occurs when a website’s SSL/TLS certificate does not match the encryption protocol or cipher that the browser is trying to use to establish a secure connection. 

In the following sections, we will have a look at chrome err_ssl_version_or_cipher_mismatch causes and how you can fix them with some effective and proven-to-work techniques. 

What Causes the ERR_SSL_VERSION_OR_CIPHER_MISMATCH Error?

There are several reasons why you might encounter the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. We have given a brief about each of the causes for your reference. 

Outdated TLS Versions:

One of the most common causes of the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error is outdated TLS versions. If your browser tries to use an outdated version of TLS to establish a secure connection with a website that only supports newer TLS versions, the connection will fail. 

Source: kinsta.com

To fix err_ssl_version_or_cipher_mismatch Chrome because of an outdated TLS version, you can update your browser to the latest version, which should support the latest TLS versions. 

Invalid Certification:

Another common cause of the net::err_ssl_version_or_cipher_mismatch error is an invalid or expired SSL/TLS certificate. If your browser does not trust the website’s certificate or it has expired, it will not be able to establish a secure connection with the website. 

To fix this issue, you can try clearing your browser cache or contact the website’s owner to request a new, valid SSL/TLS certificate.

Browser Cache:

Source: hostinger.com

Sometimes, the chrome err_ssl_version_or_cipher_mismatch error can be caused by a corrupted or outdated browser cache. If this is the case, clearing your browser cache and cookies should fix the issue. You can do this by going to your browser’s settings and clearing your cache and cookies.

Outdated OS or Browser:

Source: whatismybrowser.com

If your operating system or browser is outdated, you may encounter the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. In such cases, errors occur because older operating systems or browsers may not support newer versions of TLS. You can try updating your operating system or browser to the latest version to fix this issue.

Antivirus Software:

Source: paisawapas.com

The next reason for getting “uses an unsupported protocol” when accessing a website can be the antivirus software you use. To fix this issue, you can try temporarily disabling your antivirus software and see if the error disappears. If it does, you may need to add an exception for the website in your antivirus software.

QUIC Protocol:

Finally, the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error can be caused by using the QUIC protocol. It is a new protocol still in development and may not be supported by all browsers. 

To fix this issue, you can try disabling the QUIC protocol in your browser’s settings. 

Source: hostinger.com

Now as we know why you may get a “uses an unsupported protocol” message while browsing through websites, let’s have a look at various ways of chrome err_ssl_version_or_cipher_mismatch.  

How to Fix the ERR_SSL_VERSION_OR_CIPHER_MISMATCH Error in Chrome? 

In this section, we have mentioned 15+ ways to solve err_ssl_version_or_cipher_mismatch Chrome. Let’s have a look at each of them quickly. 

Check the SSL/TLS Certificate:

The first step in fixing the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error is to check the SSL/TLS certificate of the website you’re trying to access. 

To check a website’s SSL/TLS certificate, click on the padlock icon in the address bar and select “Certificate.” 

Source: hostinger.com

Check the certificate’s details to ensure it’s valid and issued by a trusted certificate authority. If there are any err_ssl_version_or_cipher_mismatch hide details, you can find them here easily. 

Clear SSL State In Chrome:

If the SSL/TLS certificate is valid, the next step to fix net::err_ssl_version_or_cipher_mismatch is clearing the SSL state in Chrome. 

Clearing the SSL state in Chrome will remove any corrupted or outdated SSL/TLS information that may be causing the error. 

Source: kinsta.com

To clear the SSL state in Chrome, go to Chrome’s settings, click on “Privacy and Security,” then select “Clear browsing data.” Check the box next to “Cookies and other site data” and “Cached images and files,” then click on “Clear data.”

Check for Certificate Name Mismatch:

Another common cause of the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error is a certificate name mismatch.

The mismatch of certificate names occurs when the domain name in the SSL/TLS certificate does not match the domain name of the website you’re trying to access. 

Source: kinsta.com

To fix this issue, double-check the domain name in the certificate and ensure that it matches the website’s domain name. 

Configure SSL with Cloudflare:

Source: hostinger.com

Another reason for err_ssl_version_or_cipher_mismatch Cloudflare is configuration. If you’re using Cloudflare to manage SSL/TLS for your website, you may need to configure it correctly to avoid the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. Check the Cloudflare settings for your website and ensure that SSL/TLS is configured correctly.

Enable TLS 1.3 Support:

The next thing you can do to err_ssl_version_or_cipher_mismatch chrome bypass is by enabling TLS 1.3 for Chrome.

TLS 1.3 is the latest SSL/TLS protocol version and may be required to establish a secure connection with some websites. 

To enable TLS 1.3 support in Chrome, go to Chrome’s settings, click on “Privacy and Security,” then select “Security.” Under “Advanced,” toggle on “Enable TLS 1.3.”

Source: hostinger.com

Another way to enable TLS 1.3 support is by using Google Chrome Flags. To access Chrome Flags, type “chrome://flags” into the address bar and hit enter. Then search for “TLS 1.3” and enable it.

Source: hostinger.com

Disable the QUIC Protocol:

The QUIC (Quick UDP Internet Connections) protocol can sometimes cause the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error in Chrome. Disabling QUIC can fix the issue. 

To disable the QUIC protocol, type “chrome://flags/#enable-quic” into the address bar, hit enter, and select “Disabled.” 

Clear Your Web History/Cache:

Source: hostinger.com

Source: hostinger.com

Clearing your web history and cache can sometimes fix the chrome err_ssl_version_or_cipher_mismatch. 

To clear your web history and cache, go to Chrome’s settings, click on “Privacy and Security,” then select “Clear browsing data.” Check the boxes next to “Cookies and other site data” and “Cached images and files,” then click on “Clear data.”

Disable Your Antivirus or Firewall:

Your antivirus or firewall software can sometimes interfere with the SSL/TLS connection, causing the net::err_ssl_version_or_cipher_mismatch. 

To disable your antivirus or firewall, try disabling your antivirus or firewall temporarily and see if that fixes the issue. If it does, you may need to add an exception for Chrome or the website you’re trying to access.

Use a New Operating System:

The next thing you can do to fix chrome err_ssl_version_or_cipher_mismatch is to use a new operating system that supports the latest SSL/TLS protocols. 

For example, if you’re using Windows XP, you may need to upgrade to Windows 7 or later to establish a secure connection with some websites.

Check RC4 Cipher Suite:

Source: kinsta.com

Some websites use the RC4 Cipher Suite, an outdated and insecure encryption method. Chrome may block the connection to these websites as a security measure. 

To check if the RC4 Cipher Suite is causing the error, you can type “chrome://flags/#enable-rc4-md5” into the address bar and see if it is enabled. If it is, you can disable it and try to access the website again.

Clear the Chrome Cache:

Clearing the Chrome cache can sometimes fix the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. 

To clear the Chrome Cache, go to Chrome’s settings, click on “Privacy and Security,” then select “Clear browsing data.” Check the box next to “Cached images and files,” then click on “Clear data.”

Reinstall Your Browser:

Source: alphr.com

The next thing you can do to fix net::err_ssl_version_or_cipher_mismatch is to reinstall your browser. 

To reinstall your browser, go to your computer’s “Control Panel,” select “Programs and Features,” find Google Chrome in the list of programs, right-click on it, and select “Uninstall.” Then download and reinstall Chrome from the official website.

Remove Unnecessary Add-ons and Extensions:

Some Chrome extensions or add-ons can interfere with the SSL/TLS connection, causing the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. 

To fix chrome err_ssl_version_or_cipher_mismatch, try removing any unnecessary extensions or add-ons and see if that fixes the issue.

Make Sure your PC Date/Time is Correct:

An incorrect date or time is one of the most overlooked causes of getting the “uses an unsupported protocol” message. 

To fix this, ensure your computer’s date and time are correct. You can do this by right-clicking on time in the bottom right corner of your screen and selecting “Adjust date/time.”

Adjust Your Internet Security and Privacy Level:

Your Internet security and privacy settings may block the SSL/TLS connection, causing the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. To fix the error, try adjusting your security and privacy level settings. 

Source: herongyang.com

For example, you can try lowering your firewall settings or temporarily disabling your antivirus software to see if that resolves the issue.

Manually Inspect Security Certificate:

The next thing you can do for err_ssl_version_or_cipher_mismatch chrome bypass is manually inspecting the security certificate to see if it has any issues.

To manually inspect the security certificate, click on the lock icon in the address bar and select “Certificate.” 

Check whether the certificate is valid and issued by a trusted authority. If there are any issues with the certificate, you may need to contact the website owner or your IT department for assistance.

Client-side Issues Leading to the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error:

Sometimes the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error can be caused by issues on the client side, such as outdated browser versions, incompatible browser extensions, or incorrect SSL/TLS settings.

To fix this, try updating your browser to the latest version, disabling incompatible browser extensions, or adjusting your SSL/TLS settings to match the website’s requirements.

By trying these additional solutions, you should be able to resolve the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error and establish a secure connection with the website. 

If the error persists, you may need to contact the website owner or your IT department for further assistance.

How to Solve Err_Ssl_Version_or_Cipher_Mismatch in Edge? 

If you are facing net::err_ssl_version_or_cipher_mismatch in Edge, here are some ways to fix the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error in Edge:

Clear the Edge Cache:

A corrupted cache in Edge may cause the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. 

To fix the error, try clearing the cache by going to Settings > Privacy, search, and Services> Choose what to clear, and then selecting “Cached data and files.”

Source: alphr.com

Source: alphr.com

Change Internet Options Settings:

The next thing you can do to fix chrome err_ssl_version_or_cipher_mismatch is adjust the Internet Options settings in Edge by going to Settings > Privacy, search, and services > Cookies and Site Permissions> Manage Permissions. From there, you can adjust your settings to allow for SSL/TLS connections.

Drop the “S” in HTTPS:

Sometimes removing the “S” from “HTTPS” in the website’s URL can help resolve the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. It will force Edge to use a less secure connection, so use this solution as a last resort.

Sync the Computer Date and Time:

Ensure that the date and time on your computer are set correctly. An incorrect date and time can cause the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error.

Delete SSL Certificate Cache:

Deleting the SSL certificate cache may help resolve the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. 

To delete the SSL certificate cache, open the Run dialog box by pressing Windows Key + R, type in “certmgr.msc,” and press Enter. Select “Trusted Root Certification Authorities” from there and delete the SSL certificate cache.

By trying these solutions, you should be able to resolve the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error in Edge. If the error persists, you may need to contact the website owner or your IT department for further assistance.

What If the ERR_SSL_VERSION_OR_CIPHER_MISMATCH Error Persists?

Source: trendblog.net

If the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error persists even after trying the above solutions, it may indicate a deeper problem that requires further investigation. Please get in touch with your company’s IT department or get professional help to fix the issue. 

Also Read: How to Use Python Split() String Method?

FAQs: 

Q: What is “err_ssl_version_or_cipher_mismatch,” and Why Do I See the “uses an unsupported protocol” Message?

A: The “err_ssl_version_or_cipher_mismatch” error occurs when the SSL/TLS certificate on a website is incompatible with the encryption protocols supported by the web browser. This can be because of various reasons, such as outdated TLS versions, invalid certification, browser cache, or other issues.

Q: How Can I Fix My Website’s “err_ssl_version_or_cipher_mismatch” Error?

A: On your website, you can try several solutions to fix the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. Follow the techniques mentioned in the blog to fix the chrome err_ssl_version_or_cipher_mismatch error. 

Q: Can a Mismatched SSL Version or Cipher Affect My Website’s SEO Ranking?

A: Yes, a mismatched SSL version or cipher can affect your website’s SEO ranking negatively, as it can cause Google to flag your website as insecure, leading to a drop in rankings.

Q: How Do I Check My SSL Certificate’s Validity and Installation?

A: You can use online tools like SSL Shopper or Qualys SSL Labs to check your SSL certificate’s validity and installation.

Q: How Do I Update My Web Server Software to Support Modern SSL/TLS Protocols and Ciphers?

A: You can update your web server software to support modern SSL/TLS protocols and ciphers by checking the documentation provided by your web server vendor or consulting with your IT department.

Q: How Do I Configure My SSL Settings to Resolve ERR_SSL_VERSION_OR_CIPHER_MISMATCH?

A: You can configure your SSL settings to resolve the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error by following the instructions provided by your web browser or consulting with your IT department.

Conclusion: 

The ERR_SSL_VERSION_OR_CIPHER_MISMATCH error can be caused by various factors and may require different solutions depending on the situation. Trying the solutions mentioned above or consulting with a professional can resolve the error and ensure your website is secure and accessible to all users.

If you are an end user, following the techniques mentioned, you should be able to resolve the error and establish a secure connection with the website.

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We hope this blog has helped you solve your problem. For more useful and valuable tips, keep visiting Techconcord.