Look at the website’s URL. The address should begin with HTTPS if the connection is safe (note the s at the end). You may also verify the security status in Chrome’s address bar. How? Check the security status to the left of the website address. If the word ‘Secure’ with a lock icon displays on your computer screen, the website is secure. Aside from ‘Secure,’ if you see ‘Info or not secure’ or ‘Not secure or harmful,’ you should leave the website right away. We have mentioned steps below to Fix ERR_SSL_PROTOCOL_ERROR in Windows 11
Ways to Fix ERR_SSL_PROTOCOL_ERROR in Windows 11
Delete the Hosts file
Every version of Windows includes a host file, which is a text file that contains a mapping between domain names and IP addresses. Virus software can occasionally change this file, resulting in a variety of issues. Delete this file to resolve the ERR SSL PROTOCOL ERROR problem. To open the Run app, press Win + R. Enter the path C: Windows System32 drivers, etc. to rapidly browse to the location of the host’s file.
Disable QUIC Protocol
The QUIC Protocol uses UDP to establish a connection between two endpoints. If one of these fails, the error code ERR SSL PROTOCOL ERROR will be shown in the browser. In the address bar of your browser, type chrome: / flags /. Next, search for Experimental QUIC protocol and uncheck Disabled on the right. Restart your browser to see whether the problem has been repaired.
Clear SSL
When you connect to a website, your PC requests a certificate that is examined for security. If SSL is secure, a connection is made to the site after the verification is complete. This is a lengthy procedure, and the website certificates are stored locally on your computer to speed up the process the next time you connect to the site. These local files can get corrupted, resulting in a variety of SSL issues.
Final Words
We hope like our article on How to Fix ERR_SSL_PROTOCOL_ERROR in Windows 11. The ERR SSL PROTOCOL ERROR message may arise as a result of a problem with the website’s SSL certificate or the client’s browser. Although the root cause of the problem is frequently difficult to pinpoint
