What is ERR-SSL-PROTOCOL-ERR?
The ERR-SSL-PROTOCOL-ERR error is categorized as a medium-severity network adapter issue that can significantly impact your PC's stability. The browser refuses to load the web page due to an HTTPS/SSL error. When experiencing the Secure connection (SSL) error fault, users often report sudden system crashes, unresponsive behavior, or a blue screen of death (BSOD). In most diagnostic scenarios, this problem is directly triggered by underlying hardware or software complications such as the date and time are incorrectly set on the computer, anti-virus programs (e.g. eset, avast) scan ssl transmission poorly and outdated operating system without root certificates. To permanently resolve the ERR-SSL-PROTOCOL-ERR issue and prevent further system degradation, it is highly recommended to follow our step-by-step troubleshooting guide below, ensuring your network adapter components are functioning correctly.
Common Causes
- The date and time are incorrectly set on the computer
- Anti-virus programs (e.g. ESET, Avast) scan SSL transmission poorly
- Outdated operating system without root certificates
Step-by-Step Fix Guide
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1
Synchronize time in Windows (NTP)
Applying the first fix (Synchronize time in Windows (NTP)) addresses the most common root cause of ERR-SSL-PROTOCOL-ERR and restores baseline functionality.
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2
Turn off 'HTTPS Scan' in the antivirus
If the problem persists, proceeding with the remaining steps ensures all edge cases related to network instability are covered.
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3
Try clearing your browser's cache and cookies
Commands & Diagnostics
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