A big red warning screen covers your browser: “Your connection is not private. Attackers might be trying to steal your information.” The error code at the bottom reads NET::ERR_CERT_DATE_INVALID or ERR_CERT_AUTHORITY_INVALID.
This looks terrifying, but 9 times out of 10, nobody is actually hacking you. This error simply means your browser couldn’t verify the website’s SSL certificate (the digital ID card that proves the site is who they claim to be). Here is how to resolve it safely.
Fix 1: Sync Your Windows Clock
This is the cause of this error in 80% of cases. SSL certificates have strict expiration dates. If your computer’s internal clock is off by even a few hours, it will think every website on the internet has an invalid, expired certificate.
- Right-click the time and date in the bottom right corner of your Windows taskbar.
- Select Adjust date/time.
- Ensure Set time automatically is turned ON.
- Click the Sync now button under the “Synchronize your clock” section.
- Wait for the checkmark to appear, then refresh your browser.
Fix 2: Clear the SSL State
Windows caches SSL certificates locally to speed up browsing. If this cache gets corrupted, it will constantly throw privacy errors for perfectly safe websites.
- Click the Windows Start button, type Internet Options, and hit Enter.
- Click on the Content tab at the top.
- Click the button that says Clear SSL state.
- A small popup will confirm the cache was cleared. Click OK and restart your browser.
Fix 3: Public Wi-Fi Captive Portals
If you are at a hotel, airport, or coffee shop, you will almost always get this error when trying to visit a secure site (like Google or your bank) before you have officially logged into the Wi-Fi.
The public Wi-Fi is trying to intercept your connection to show you their “Terms of Service” login page, which triggers your browser’s security alarm.
- The Fix: Open a new tab and type
http://neverssl.com. This is a special, unencrypted website designed specifically to force the public Wi-Fi login screen to appear. Once you accept the coffee shop’s terms, your secure websites will load normally.
FAQ
Should I ever bypass this warning by clicking “Proceed anyway”?
Never do this if you are entering passwords, credit card info, or personal data. Only bypass it if you are 100% sure the website is safe (like an internal company portal or your home router’s admin page) and you know the certificate is just expired.
Faizan Ahmed is a senior IT specialist and the lead editor at TechWiredWorld. With over a decade of experience repairing PCs and mobile devices, his mission is to provide clear, actionable tech troubleshooting guides.