What is "SSL error" in Google Chrome ?

Check a secure connection (SSL error)

Websites use SSL (secure socket layer) to keep any information you enter on their pages private and secure. If you see the SSL error Net::ERR_CERT_DATE_INVALID in Chrome, your Internet connection or your computer is stopping Chrome from loading the page securely.

"Your connection is not private"

If you see the error "Your connection is not private" in Chrome, try the following tips:

On a computer

1. If you are using Windows XP 32-bit, make sure you have Service Pack 3 installed.
2. If you are using Windows Server 2003 or Windows XP 64-bit, make sure you have Service Pack 2 installed and also the SHA-256 support hotfix.
3. If you’re trying to log in to a WiFi portal, try visiting a website in HTTP to get to the Wi-Fi login page.
4. Try opening the page in Incognito mode. If it works there, it means one of your extensions is causing the security problem and you should remove it.

On a mobile device

If you’re trying to log in to a WiFi portal, try visiting a website in HTTP to get to the Wi-Fi login page.
If you have any anti-virus software that provides "HTTPS protection" or “HTTPS scanning,” it might be interfering with the browser's ability to provide security and should be disabled.

"Your clock is behind" or "Your clock is ahead"

If you see the error "Your clock is behind" or "Your clock is ahead," your computer's inaccurate date and time are causing an SSL error. To get rid of this message, update your device's clock.

Why SSL errors occur ?

Here are a few reasons why SSL warnings occur:

The certificate is not issued by a recognized third party. Since anyone can create a certificate, Google Chrome checks to see whether a site's certificate came from a trusted organization.
The site's certificate is not up-to-date, so Google Chrome can not verify that the site is still secure.
The connection between the browser and the website might not be secure.

You can also click Advanced on the left-hand side of the warning to learn more about it.

See if a site is using a secure connection (SSL)

If you're entering sensitive, personal information on a page, look for a lock icon to the left of the site's URL in the address bar. The icon will tell you whether the site is secure.

Icon	What it means
	The site is not using SSL. This icon displays for http:// sites. Avoid entering sensitive information, such as your credit card information or bank login information, on the page. If sensitive information is being requested on a site not using SSL, consider contacting the website owner.
	Google Chrome has successfully established a secure connection with the site. Look for this icon and make sure the URL has the correct domain, if you're required to log in to the site or enter sensitive information on the page. If a site uses an Extended Validation SSL (EV-SSL) certificate, the organization's name also appears next to the icon in green text.
	The site uses SSL, but Google Chrome has detected insecure content on the page. Be careful if you're entering sensitive information on this page. Insecure content can provide a loophole for someone to change the look of the page.
	The site uses SSL, but Google Chrome has detected either high-risk insecure content on the page or problems with the site's certificate. Do not enter sensitive information on this page. Invalid certificate or other serious https issues could indicate that someone is attempting to tamper with your connection to the site.