Get Rid of the ERR_SSL_PROTOCOL_ERROR with Effective Resolutions

Solution For ERR_SSL_PROTOCOL_ERROR: Many people use Google Chrome for surfing the web. It’s a great browser and 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.’ It is an error that commonly occurs when users browse secure websites using Google Chrome. You may encounter numerous connection error messages when you access a website through the Google Chrome browser. This error is one of the most prevalent ones and happens when your web browser cannot set up a secure connection. In this article, you’ll find the various ways you can troubleshoot it.


What Causes the ERR_SSL_PROTOCOL_ERROR to Occur?

When Google Chrome shows the error message upon calling an HTTPS address, the browser gives the following description about why there was a failure in the connection setup.

‘Unable to make a secure connection to the server. This may be a problem with the server, or it may be requiring a client authentication certificate that you don’t have.’

When the user sees this message, they cannot make much sense of 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 been expired. Moreover, a range of technical glitches can also be behind the exchange of certificates not functioning.

In case the SSL protocol error has something to do with the browser of the user, many reasons can be behind it. As opposed to what appears to be occurring in the case described above, it might be that the authentication certificate is there with the client, but the server is unable to find it. The most prevalent causes behind the error are given below.

  • Incorrect system time or date.
  • An antivirus program or a firewall has blocked the IP address or a website.
  • Corrupted HOSTS file.
  • The connection setup is getting obstructed by the QUIC protocol.
  • The browser cache or the SSL has obsolete versions of certificates.
  • The error message is being caused due to the Chrome extensions.


Ways to Troubleshoot the ERR_SSL_PROTOCOL_ERROR

You can use some of the proven resolutions for fixing the ERR_SSL_PROTOCOL_ERROR message. These troubleshooting techniques will allow you to re-establish a connection with a safe website.


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 you need to clear 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 that, the cache and cookies will also be removed. It will resolve the error.


Disable the QUIC Protocol to Manage ERR_SSL_PROTOCOL_ERROR

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-quic’ 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.


Clear the SSL state

If you find the above-outlined methods not working to resolve the SSL protocol error or localhost, you can try clearing the SSL state. Below are the steps to follow.

  • Navigate to the 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.


Install Chrome’s latest version

The issue may often be accruing from your browser, which you have not updated. A browser that’s outdated can result in a variety of connection errors like ERR_SSL_PROTOCOL_ERROR. This error is no exception to it. The Chrome browser you have can update itself automatically based on your internet connection settings. But if you are doubtful whether it is updating itself or not, go over to Google and from there install the newest version of Chrome. It will most probably resolve this error.


Disable Chrome extensions

A corrupted Google Chrome extension can trigger 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 need to disable them and find if it resolves the issue. It is also not possible to know the extension that may be resulting in the connection issue. So, the only solution is to deactivate all the extensions one by one.


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.’ You can now 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 that the specific extension was resulting in the ERR_SSL_PROTOCOL_ERROR problem.


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. It is the reason why it’s essential for the date and time to be accurate. 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.’


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

These are some of the tried and tested resolutions to fix the ERR_SSL_PROTOCOL_ERROR. You can try them all to resolve this issue. However, if you are unable to get rid of this error, contact the WordPress customer service team. They will help you eliminate all kinds of technical glitches and error messages.

Tagged with: