How to Fix SSL Error: Certificate Has Expired

Quick Answer: SSL certificate expired error occurs when the website's SSL certificate is no longer valid. Contact the website administrator to renew the certificate, or check your system date/time settings.

What Causes This Error

SSL certificate validity period has ended
Website administrator failed to renew certificate
System date and time set incorrectly
Certificate revoked by certificate authority
Intermediate certificate expired
Certificate chain incomplete or broken
Client system clock out of sync with server

Step-by-Step Fixes

Fix 1: Check System Date and Time

Open system settings,Verify date and time are correct,Enable automatic time sync if available,Restart browser,Try accessing website again

Fix 2: Clear Browser Cache and Cookies

Open browser settings,Go to Privacy/Security,Clear browsing data,Select all time ranges,Restart browser

Fix 3: Try Different Browser

Open website in different browser,If it works, clear cache in original browser,Check browser certificate settings,Update browser to latest version,Try again

Fix 4: Contact Website Administrator

Note the domain name,Find contact information,Report the expired certificate,Request certificate renewal,Wait for renewal completion

Fix 5: Check Certificate Details

Click the lock icon in address bar,View certificate details,Check expiration date,Note issuing authority,Report to website owner