Get Rid of the ERR_SSL_PROTOCOL_ERROR with Effective Resolutions

Get Rid of the ERR_SSL_PROTOCOL_ERROR with Effective Resolutions

userPosted by Mason Lava

As we know Google Chrome is one of the popular platform for surfing the web. Indeed, an excellent browser that offers a smooth user interface. But at times, it’s possible to run into an SSL error. It reads as This site can’t provide a secure connection –ERR_SSL_PROTOCOL_ERROR. This is one of the common errors when users browse secure websites using Google Chrome. You may encounter numerous connection error messages while accessing a website through the Google Chrome browser. And it is one of the most prevalent ones when the web browser can’t set up a secure connection.  Don’t worry! Here, in this article, you’ll find various ways to troubleshoot it.


What Causes the ERR_SSL_PROTOCOL_ERROR to Occur?

Google Chrome shows the error message upon calling an HTTPS address, the browser may provide the following description why there is a failure in the connection setup?

When you’re unable to make a secure connection to the server. It may create a problem with the server, or it may require a client authentication certificate you don’t have.’

When the user sees this message, they cannot sense it. The explanation just states that the error is there either on the client or browser side or on the server side. The error on the server side is because the site contacted is TLS/SSL certified.

 However, the certificate, because of non-renewal, has expired. Moreover, a range of technical glitches is also left behind in the exchange of certificates not functioning.

In case the SSL protocol error has something to do with the browser, there could be various reasons behind this. As opposed to what appears to be occurring in the case described above, it might be the authentication certificate with the client, but the server can’t see it.

  • Incorrect system time or date
  • An antivirus program or a firewall  blocks the IP address or a website
  • Corrupted HOSTS file 
  • Obstructed connection set up by the QUIC protocol
  • Browser cache or the SSL has obsolete versions of certificates
  • Error message because of Chrome extensions

Let’s Troubleshoot the ERR_SSL_PROTOCOL_ERROR Using Given Methods

This gives you a proper resolution for fixing the ERR_SSL_PROTOCOL_ERROR message. These troubleshooting techniques will allow you to re-establish a connection with a safe website.


1. Remove the browser cache.

It’s a very simple yet powerful solution to correct a majority of browser-server errors like ERR_SSL_PROTOCOL_ERROR. Hold the ‘Shift + Ctrl + Delete’ keys on the Windows keyboard when clearing the browser cache on Google Chrome.  When you do this, you’ll launch Google Chrome’s cache settings. Choose ‘Cookies…’ and ‘Cached…’ items. After that, tap ‘Clear Data.’ The browsing data will get cleared. Along with, the cache and cookies will also be removed to resolve the error.


2. Disable the QUIC Protocol

QUIC or Quick UDP Internet Connections gives a TLS/SSL equivalent connection to the servers of Google. This protocol is enabled in the Chrome browser by default. When you disable it, you can fix this error. Simply copy and paste ‘chrome..//flags/#enable-quick’ on the address bar. Then tap ‘Enter.’ On your screen’s upper part, you’ll see that the experimental QUIC protocol is set as default. Now disable it and launch Chrome again.


3. Clear the SSL state

When you come across outlined methods not working to resolve SSL protocol error or localhost, you can still clear the SSL state. 

  • Navigate three dots that you see on the right-hand corner of Chrome. They are present beneath the close (X) button.
  • Tap on ‘Settings.’
  • Go down this page and tap on the ‘Advanced Settings.’
  • Navigate to ‘Open proxy settings’ by either searching in the search bar or scrolling down the page.
  • You’ll see the window of ‘Internet Properties’ opening up.
  • Navigate to the ‘Content’ window and tap on the ‘Clear SSL State’ button.

4. Install Chrome’s latest version

The issue may often be accruing from your browser, which you have not updated. A browser that’s outdated results in a variety of connection errors like ERR_SSL_PROTOCOL_ERROR. Hence, this error is no exception at all. The Chrome browser automatically updates itself based on your internet connection settings. 

But if you are doubtful whether it is updating itself or not, go to Google and from there install the newest version of Chrome. It will most probably resolve this error. 


5. Disable Chrome extensions

A corrupted Google Chrome extension triggers the browser to bring out various connections ERR_SSL_PROTOCOL_ERROR. It is especially true for people who have installed several extensions on their browsers. You can disable them and find the right fix to resolve the issue. Also, it is not possible to know the extension that may result in connectivity issues. So, the only solution you do is to activate the extensions.

 You can launch the browser and tap the three-dot vertical icons present at the top-right part. Now go to ‘More tools and then choose ‘Extension.’ Also, you can disable each extension one by one.

 Tap the ‘Remove’ button. You can also click the blue toggle icon. When you remove a specific extension, refresh the browser. Check if the connection error is there or not. If it disappears after you disable an extension, it means the specific extension may result in the ERR_SSL_PROTOCOL_ERROR problem. 


6. Look at the date and time of your system.

Incorrect system dates may also cause you to encounter the SSL protocol error. It’s because an SSL certificate is only valid if it is not expired. It means that till the time the certificate’s expiration time has not passed, the certificate will be valid.

That’s the reason why it’s essential for up to date time and date. If they are not correct, it will lead your system to think that the SSL certificate you want to access on the site has expired.

Follow the steps below to check the date and time.

  • Go to ‘Settings/Control Panel’ and choose ‘Time & Language.’
  • On the next page, tap the ‘Change’ button.
  • Now, update the system’s date and time correctly. To prevent this problem from occurring again, turn on ‘Set time automatically.’

7. Check the antivirus software settings.

As you might be familiar, the antivirus software monitors web pages you browse and keeps you protected from threats or virus attacks. It checks the SSL/TLS protocol used by a website. When it finds a protocol outdated or insecure, it obstructs you from browsing the site. So, you have to check if the software is scanning the SSL protocol. If it is scanning, disable it and see if the problem goes away.


Final Words

 I hope with this tried and tested method will be helpful to fix ERR_SSL_PROTOCOL_ERROR. And you can resolve all such issues. In case you’re not able to get rid of the error, you can still get in touch with WordPress Support Team. They’ll help overcome all kinds of technical glitches and error messages.

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