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How to Fix Net ERR_SSL_PROTOCOL_ERROR in Google Chrome?

A step by step guide to fix Net ERR_SSL_PROTOCOL_ERROR in Google Chrome, Get rid of “This site can’t provide a secure connection” message.

Are you the user of popular web browser Google Chrome who’s facing the error message “This site can’t provide a secure connection” or “ERR_SSL_PROTOCOL_ERROR” or Error Code 107 on Google Chrome? If that’s the case, don’t you worry as there are hundreds of thousands of users like you in the same boat as you. Here, we will walk you through the series of straightforward steps that will help you terminate the SSL error like net::ERR_SSL_PROTOCOL_ERROR chrome and will leave you in peace.

Furthermore, in this article, you’ll learn what this error message ‘ERR_SSL_PROTOCOL_ERROR’ is in Google Chrome, what are the reasons behind it, and definitely the right solutions to fix this net::ERR_SSL_PROTOCOL_ERROR message in Chrome.

See Also : How to Convert a Certificate to PEM: CRT to PEM, CER to PEM, DER to PEM
err ssl protocol error chrome
Here we’re explaining various solutions to fix Net::ERR_SSL_PROTOCOL_ERROR

How to Fix “ERR_SSL_PROTOCOL_ERROR” for Google Chrome

  1. Fix the Date or Time of Your System
  2. Clear Google Chrome’s Browsing Data
  3. Clear Your SSL State
  4. Disable QUIC Protocol of Google Chrome
  5. Fix Settings of Your Installed Antivirus Software
  6. Fix Firewall Settings
  7. Remove or Disable Extension
  8. Remove the Hosts file
  9. Fix Your Internet Security and Privacy Level

1. Fix the Date or Time of Your System

A possibility is there that an incorrect date and time settings may interrupt with the website you’re trying to connect and generate this ERR_SSL_PROTOCOL_ERROR. So, make sure that the system date and time aren’t behind or running ahead of an actual one.

The validity of the Certificate is an essential factor for the authentication process, which means also keeping tabs on the time it was signed and when the expiration will occur. So, any issue with your system’s time or date can cause this error at the time of authentication.

central-time-usa

2. Clear Google Chrome’s Browsing Data

Whether you’re getting this SSL connection error on Chrome or not, you should clear the cache and cookies of your browser on a regular basis. Follow the below steps to delete browsing data from your Google Chrome browser:
  • Launch Google Chrome
  • Press Ctrl + Shift + Delete
  • Set Time Range to “All Time“
  • Check the checkbox for “Cookies and other site data”
  • Check the checkbox for “Cached images and files“
  • Hit Clear Data Button
clear-cache-and-cookies

3. Clear Your SSL State

If the SSL State is not cleared, it might block SSL connection and cause the SSL Connection Error. Follow the steps below to clear the SSL state.

developer tools
  1. Go to Start Menu > Control Panel > Network and Internet > Network and Sharing Center
  2. Now click on Internet Options from the bottom-left corner.
    • or from Internet Explorer, type Alt + T, select Internet Options
  3. A new Internet Properties window will appear.
  4. Now move to the Content tab and click on Clear SSL State.
clear-ssl-state

“The SSL cache was successfully cleared” alert should be on your screen.

Again, restart Chrome and check err ssl protocol error if net::ERR_SSL_PROTOCOL_ERROR is still there.

Still nothing? Move on to the next step.

4. Disable QUIC Protocol of Google Chrome

Disabling QUIC protocol will remove this error permanently from Chrome, here’s how you can do it.
  1. In your chrome browser URL, type chrome://flags/#enable-quic and hit enter.
  2. Experimental QUIC protocol would probably have been set as Default. Change it to Disabled.
  3. Now go to the bottom of the page and click on RELAUNCH NOW
disable-quic-protocol
Worked? Great. Didn’t? Try the next one.

5. Fix Settings of Your Installed Antivirus Software

Not always the case, but sometimes your installed antivirus software can be a reason behind receiving an ERR_SSL_PROTOCOL_ERROR. These days all the available antivirus programs scan the entire websites for any malicious elements or security threats, including any outdated SSL/TLS version. For example, SSL 3.0 or TLS 1.0, which are no longer used due to its vulnerability issues.

Also, there are not any fixed steps to change the settings of your installed Antivirus, as it differs depending upon the UI of your installed antivirus software. If you can find out in your Antivirus software, then carefully make the change and see how it works. If the problem continues, then it’s recommended to reverting the changes you made in the settings option.

6. Fix Firewall Settings

If the website or its IP address has been blocked by your firewall, chrome will display the Err_SSL_Protocol_Error. Check your firewall settings and if you find that website/IP address, quickly remove it.

7. Remove or Disable Extension

Sometimes, the browser extensions could be causing the SSL connection error. It’s hard to know which one is behind it. The best strategy would be removing or disabling extensions one by one.
To view all Chrome Extension, type chrome://extensions/ in the URL bar.
remove-or-disable-extension

8. Remove the Hosts file

  1. Press Windows + R, type in C:\Windows\System32\drivers\etc & hit enter button
  2. You will find a file named hosts. Delete it.
remove-the-hosts-file
Restart Chrome and see whether this has had any effects or not. If not, try the next one!

9. Fix Your Internet Security and Privacy Level

If the problem is persisting, then you can try by checking the Internet Security and Privacy level. As the possibility of blocking a particular website and facing ERR_SSL_PROTOCOL_ERROR is there if the privacy level is too high.

Follow Below Steps to Lower the Level:

  1. In the search bar of your computer, type “Internet Options”.
  2. Once the “Internet Properties” opens, navigate to the Security tab and look at the provided slider. If the slider is too high, then bring back to the Medium level (in the middle) and click on the “OK” button.
internet-security-and-privacy-level
Lastly, no matter which device you’re using, whether its Tablet, PC/Laptop, Smart Phones, Chromebook or any other web browser such as Opera, Brave, GoLogin, Chromium then no need to worry, in that also steps will remain the same. Follow the same in any of the mentioned web browser or the device installed into it and get your SSL Connection error solved.

We hope you’ve finally got rid of ERR_SSL_PROTOCOL_ERROR in Chrome.

How to Fix ERR_SSL_PROTOCOL_ERROR in Android Devices

Likewise, if you’re using an Android device for browsing and you face this SSL Connection error, then steps may differ. But before heading for other solutions, do check some of the things like whether the website is SSL/TLS certificate enabled or not.

If it’s installed and still facing that error then you might have to look for certain other things like, whether the Date & Time of the internet-connected device is right, the web browser is not updated, installed Antivirus, or any other Security application might be creating a problem. Moreover, if the problem persists, you can read this article for the same, from which you will get the solution.

ERR_SSL_PROTOCOL_ERROR FAQ

1. What is ERR_SSL_PROTOCOL_Error in Google Chrome?

Before we jump into knowing what causes this Google Chrome error message or how to solve it, let’s try to find the answer to questions such as What is ERR_SSL_PROTOCOL_Error? or What does SSL Protocol ERROR mean?

Put simply, whenever the user tries to access SSL protected website via Google Chrome, and the secure connection fails, then this error message ERR_SSL_PROTOCOL_ERROR also known as “this site can’t provide a secure connection” occurs.

To put it another way, it’s a way of Google Chrome to inform you that the website you’re trying to open is facing a problem which is preventing the mandatory exchange of certificate. It’s one of the frustrating errors from the family of SSL errors, which happens if there’s a lack of client authentication or there are any issues related to the server.

2. Why Chrome Displaying NET::ERR_SSL_PROTOCOL_ERROR?

Well, there could be tons of reasons behind it. It could be as simple as wrong system date and it could be a complex server issue. In any case, our course of action will probably help you throw this SSL error out of your Chrome.20

3. What Causes of Chrom ERR_SSL_PROTOCOL_ERROR?

There are numerous reasons why the website you’re trying to open does not connect successfully with the server. However, it’s not always possible to point out all the reasons at once, but we’ve listed some of the most common ones, due to which you’ll be able to figure out what causes this ERR_SSL_PROTOCOL_ERROR or Error 107 occurs in Google Chrome.

  1. Invalid System Time
  2. Firewall blocking the website or IP address
  3. Website could be blacklisted in the Hosts file
  4. Browser extension blocking the website
  5. Cookies and Cache not cleared for a long time
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