How to Fix Chrome Error: NET::ERR_CERT_AUTHORITY_INVALID

Quick Answer: Chrome certificate authority error indicates an untrusted or self-signed SSL certificate. Verify the website is legitimate, update your system certificates, or check your date/time settings.

What Causes This Error

Website using self-signed SSL certificate
SSL certificate not issued by trusted authority
System certificate store outdated or corrupted
Man-in-the-middle attack or network interception
Antivirus software intercepting SSL connections
System date and time incorrect
Corporate proxy or firewall intercepting HTTPS

Step-by-Step Fixes

Fix 1: Check System Date and Time

Open system settings,Verify date and time are correct,Enable automatic time synchronization,Restart Chrome,Try accessing website again

Fix 2: Update Chrome and OS

Update Chrome: Menu > Help > About Google Chrome,Update operating system,Restart computer,Clear Chrome cache,Try website again

Fix 3: Disable Antivirus Scanning

Temporarily disable antivirus,Try accessing website,If it works, add exception in antivirus,Re-enable antivirus,Test website

Fix 4: Check Corporate Proxy

Check if behind corporate proxy,Review proxy settings,Verify proxy certificate is trusted,Add proxy certificate to system store if needed,Restart Chrome

Fix 5: Verify Website Legitimacy

Check website URL carefully,Verify with official sources,Look for HTTPS in address bar,Check certificate details,Contact website owner if suspicious