SSL certificates are used to secure communication between a browser and server. You usually encounter such errors when the traffic is forcefully pushed through HTTPS. It’s tough to acquire and set up an SSL Certificate, but it still throws up errors like SSL connection errors after setting up correctly. The error prevents you from accessing certain websites in browsers. Follow this guide to know the ways to fix SSL Connection Error on Google Chrome.
8 Ways to Fix ERR_SSL_PROTOCOL_ERROR on Google Chrome.
If you are facing the SSL Connection Error on Google chrome, such as “ERR_SSL_PROTOCOL_ERROR” then you can follow the given steps to fix the error.
- Update your Chrome browser.
- Clear Cache and Cookies for Chrome browser.
- Change the Date and Time for Your Windows.
- Disable the QUIC Protocol of Chrome.
- Clear SSL State Cache in Internet Properties.
- Change The Enhanced Security Settings.
- Change Security Level.
- Add the Website to Trusted Sites.
Method 1: Update your Chrome Browser
First, ensure that the browser you are using is up to date. Sometimes this kind of error comes due to disassembling the old version. To update your chrome browser, follow our given steps below.
1. Open your chrome browser.
2. Click on the three dots on the right top of the right side.
3. Then click on the Setting option in the Chrome browser.
4. Click on the About Chrome Options.
5. After that, you can see that Chrome will start checking for available updates automatically.
6. If the update is available, update your chrome browser and install it.
7. At last browser will reboot.
Now you can check the SSL Connection.
Method 2: Clear Cache and Cookies for Chrome browser
We can always try to clear the chrome cache and cookies. If we are not clearing chrome cache and cookies, it can cause many errors. Follow our below steps.
1. Open your chrome browser and click the three dots on top of the right sight.
2. Now click on the setting option in the chrome browser.
3. Next, click the Security and Privacy option on the left.
4. Under the Security and Privacy option, click the Clear browsing data.
5. After that, the new pop-up window will open.
6. Then tick the boxes of Cookies and other site data and Cached images and files.
7. Now click the Clear data option.
After some time, it removes the cookies and site data and restarts your computer.
Method 3: Change the Date and Time for Your Windows
Sometimes “ERR_SSL_PROTOCOL_ERROR” SSL connection error can be seen in the Chrome browser due to the wrong date and time. This error could be one of the reasons. If we use the current date and time, such an error can be fixed.
1. Click on the search bar and search Taskbar.
2. Then click on the Start button.
3. Next tab to Run to open the Run command.
4. After that, search for timedate.cpl and press OK to open the Date and Time window.
5. Then click on the Change date and time option.
6. Now, you can set the date and time for your current location.
7. Click on the OK button to apply the changes.
8. After that, restart your chrome browser and check the SSL error.
Method 4: Disable the QUIC Protocol of Chrome
In this method, we can try to disable the QUIC Protocol of Chrome. By disarming this method, your error can be fixed. Follow this step
1. Open your chrome browser.
2. Copy the path chrome: //flags/#enable-quic and paste it into the address bar.
3. Or you search The Experimental QUIC Protocol, then click the default option.
4. And select the Disable option to turn off the QUIC Protocol.
5. Now, you can check the “ERR_SSL_PROTOCOL_ERROR” SSL Connection error.
Method 5: Clear SSL State Cache in Internet Properties
You can try to remove this SSL state cache from your computer and fix the SSL Connection error issue.
1. Press The Windows + R key together to open the Run command.
2. Then type inetcpl.cpl in the Run command search pop up.
3. Press the Enter key to open the Internet properties.
4. Click on the Content option in the Internet properties window.
5. Now, select and press the clear SSL state option.
After that, you can successfully open the browsers.
Method 6: Change the Enhanced Security Settings
We should change privacy settings to Enhanced Security settings because Chrome can identify the website as potentially dangerous and automatically block it due to the missing SSL Certificate.
1. Open your Chrome browser and click on the three dots on top of the right side.
2. Click on the Settings option.
3. Go to the left and click the Security and Privacy button.
4. Click on the security option.
5. Select the Enhanced protection under the safe browsing in the security settings.
This option protects your device from harmful websites, extensions, and downloads.
Method 7: Change Security Level
You can change the Security Level to Medium to not prevent the website from opening on the chrome browser. To Change Security Level by following these steps
1. Click on the windows icon and search the Taskbar
2. Select the Run option
3. After opening the Run Command, type inetcpl.cpl and click the OK button.
4. After opening the internet properties, click the security option and navigate the Security Level for this zone
5. Move the slider to Medium-high
6. Click the apply, then press the OK button. Close the Internet Properties window after saving the changes.
At last, you can check the SSL connection error, i.e. ERR_SSL_PROTOCOL_ERROR, on Google chrome.
Method 8: Add the Website to Trusted Sites
The website will be blocked if you try to access the unauthorized site by Chrome browser and don’t have an SSL certificate. So you can add the websites to trusted sites in Internet Options. To add the trusted sites, follow the below steps.
1. Click at the same time the Windows + R key to open the Run command
2. Type inetcpl.cpl in the search bar and click OK
3. In the Internet Properties window, navigate the security option
4. Select the Trusted sites icon in the “select a zone to view or change security settings field
5. Then click OK on the site’s Button.
6. New pop-up open in the windows Trusted sites. Type the site URL in the “Add this website to the zone” and click the Add button.
7. After that, press the OK and save, then close the window.
Now open the Chrome browser and check the website. I hope your problem “ERR_SSL_PROTOCOL_ERROR” will be fixed and access the website now.
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