The err_ssl_protocol_error error, which can be encountered by Windows 10 or Windows 11 users when they want to open a website via the Google Chrome internet browser, is a kind of SSL error and its solution is often simple. Let’s take a closer look at what the err_ssl_protocol_error error is, why it causes it, how to solve it, and see the methods you can apply for its solution.
Although it is experienced in many different internet browsers in many different operating systems, in general, Windows 10 and Windows 11 users encounter the err_ssl_protocol_error error when they want to open Twitter or any website via the Google Chrome desktop internet browser. it is some kind of SSL error and when they encounter it, the website in question does not open. It’s pretty annoying.
The err_ssl_protocol_error error generally occurs because the HTTPS protocol between the client and the website to be opened is not implemented. In other words, the site’s SSL certificate does not reach the client. Therefore, sometimes this problem is not fixed, but if you encounter such an error on known sites, the solution is simple. What is err_ssl_protocol_error error, why is it, how to solve it Let’s take a closer look and see the simple methods you can use to solve it.
Let’s start with the basics, what is the err_ssl_protocol_error error?
When Windows 10 and Windows 11 users want to open a website via Google Chrome desktop internet browser as a result of this operation failing The err_ssl_protocol_error error warning they encounter is a kind of incompatibility between the website servers that are wanted to be opened and the client, that is, the user server. When you encounter such an error, the website in question will not open.
What causes err_ssl_protocol_error error?
When the user wants to open a website via the internet browser, the said website is covered by the HTTPS protocol. present an SSL certificate to the browser that is, it must present an identity to prove it is reliable. In cases where this certificate is not presented, the website in question will not be opened in Google Chrome and similar internet browsers and the user will encounter err_ssl_protocol_error and similar error warnings.
How to solve err_ssl_protocol_error error? Here are the simplest solutions:
- Method #1: Disable plugins that interfere with proxy settings.
- Method #2: Disable your antivirus software.
- Method #3: Clear your internet browser’s cache.
- Method #4: Disable the QUIC protocol.
- Method #5: Update your computer’s date and time.
- Method #6: Contact the website that gave the err_ssl_protocol_error error.
Method #1: Disable plugins that interfere with proxy settings:
All desktop internet browsers offer plug-ins to their users with which they can easily perform many different actions. While these add-ons are sometimes offered to the user by the browser itself through platforms such as the Chrome Web Store, sometimes third-party by downloading from app stores they must be installed and used as such. Pay attention to what settings the plugin interferes with during this installation.
You may be using VPN for a much safer internet experience and you can get this service through an add-on. VPN plugins directly interfere with your internet browser’s proxy settings. provides this service. Different plugins can also interfere with your proxy settings, causing the err_ssl_protocol_error error. If you’re using this type of plugin, disable it and try to reopen the failed website.
Method #2: Disable your antivirus software:
Some antivirus software only scans files that you have downloaded to your computer, blocking potential malware and viruses. Others scan your internet browsing instantly. Even if you don’t download it, it blocks malware and viruses that try to infiltrate your computer online. During this blocking, suspicious websites are not opened and errors such as err_ssl_protocol_error may occur.
To resolve the err_ssl_protocol_error error, temporarily disable your antivirus software or switch to an alternative antivirus software. But At this point you have to be careful. The failing site may indeed contain malware or viruses. For this reason, you need to trust your antivirus software when you get an err_ssl_protocol_error error, except for websites you trust. So don’t open that site.
Method #3: Clear your internet browser’s cache:
If you have tried to open the website where you received an err_ssl_protocol_error error before and you have received such an error before Your internet browser cache has recorded this error. Maybe there was a temporary SSL certificate error originating from the website servers and this might have been incorrectly saved in your cache.
Even if an incorrectly saved website in the cache is fixed it will keep giving err_ssl_protocol_error error repeatedly. It is best to clear your cache completely through your internet browser’s settings page. Your browser may run slower for a while after clearing the cache, but at least you won’t get any more errors.
Method #4: Disable the QUIC protocol:
The Google Chrome web browser allows you to access websites you have visited before. so that it can be opened much more easily during your next visit Quick UDP Internet Connections uses a protocol called QUIC for short, but this protocol can sometimes cause an err_ssl_protocol_error error.
To disable the QUIC protocol, open your Google Chrome internet browser and to the address bar chrome://flags/#enable-quic write to the address. on this page Experimental QUIC Protocol option Disabled If you restart the browser after you set it as , you will most likely see that the err_ssl_protocol_error error has been resolved.
Method #5: Update your computer’s date and time:
We are in the 21st century, the devices and operating systems we use are now very smart, but unfortunately These are slave-made machines and they can make mistakes. Due to many different reasons, the date and time settings on your computer may be corrupted. The err_ssl_protocol_error error may occur when the date and time of your computer and the date and time of the website server you want to open do not match. You can fix the error by updating the date and time of your computer.
Method #6: Contact the website that gave the err_ssl_protocol_error error:
Although you have applied the above methods to resolve the err_ssl_protocol_error error If you’re still getting errors, the problem may not be with you. After all, the reason for this error is that the SSL certificate of the website cannot reach you. The website may be experiencing a temporary problem with the issue, try again after waiting for a while. If you still get the error, contact the website. Maybe the site’s SSL certificates need to be renewed.
Windows 10, 11 users encounter in Google Chrome What is err_ssl_protocol_error error, why is it, how to solve it We have explained some of the simplest methods you can apply to solve the error by answering questions such as: If you are not the source of the error, it is better not to trust the website much.