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  • How to Fix the NET::ERR_CERT_DATE_INVALID Error

    Hello everyone,
    Please guide me to solve this error. Your guidance in answering my questions would be immensely valuable.

  • #2
    The NET::ERR_CERT_DATE_INVALID message can be frustrating, impacting user experience on your website. Fortunately, this common error has various potential causes, each with relatively simple solutions. In this guide, we'll explore the meaning of NET::ERR_CERT_DATE_INVALID and delve into SSL certificates. Additionally, we'll outline several methods to effectively resolve this issue and get your website back on track.


    The system error NET::ERR_CERT_DATE_INVALID, often recognized as "Your Connection Is Not Private," is a common issue users encounter when using Google Chrome to visit certain websites, even if these sites are legitimate and trustworthy.

    This error message indicates that the internet connection or the device prevents Google Chrome from loading the website due to security concerns. Accessing such a site is considered insecure, posing a potential risk to privacy.

    How to Fix the NET::ERR_CERT_DATE_INVALID Error

    1. Check your internet connection

    When utilizing public Wi-Fi, there's a likelihood that your connection lacks security. As a precaution, consider discontinuing browsing and disconnecting from the public Wi-Fi. Attempt to regain internet access using a mobile hotspot. If the error doesn't recur, it suggests the issue originated with the public connection. However, if the same error persists, try employing a Virtual Private Network (VPN).

    Conversely, if you were using a VPN when the problem initially occurred, attempt to disable it, as it could be the root cause of the issue.

    2. Check the date and time settings.

    The error of incorrect date and time parameters may arise if your system's time is inaccurately set. Using your machine's clock, your browser verifies a site's SSL certificate expiration.

    Even with automatic syncing on your computer, discrepancies can occur. For instance, your laptop might still need to be updated if you've recently changed time zones.

    Ensure that your device's date and time settings are accurate. After confirming, reopen the browser and attempt to navigate again.

    3. Determine if Your SSL Certificate Has Expired or is Faulty

    SSL certificates have expiration dates, so if you encounter this error on your website, it might be time to renew your certificate. You can easily verify this directly from Chrome.
    1. Click on the three dots on the right side of the page in Google Chrome.
    2. Navigate to More tools > Developer tools.

    3.Head to the Security tab to check the certificate's validity. Click the "View Certificate" button for additional details, including the certificate's expiration date.

    Use tools like Qualys' SSL Server Test to assess your certificate's validity. Enter your domain name in the provided box and click the "Submit" button.

    4. Update your operating system and browser

    It's crucial to keep your operating system up to date, as older versions may lose support and become obsolete. Additionally, specific SSL certificate components may cease functioning on outdated operating systems.

    If you're using an outdated operating system version, you're more likely to encounter errors like NET::ERR_CERT_DATE_INVALID over time. The same applies to outdated browsers. Regularly updating your browser is advisable, and occasionally uninstalling and reinstalling it can be beneficial even if it's already up to date.

    5. Disable antivirus software

    Occasionally, a setting in your antivirus software might trigger the NET::ERR_CERT_DATE_INVALID error. To test this, disable your antivirus software and try accessing the website, making sure to force a refresh.

    If your antivirus software is causing the issue, first attempt to update it to the latest version. If the problem persists even after updating, contact the software's support team for further assistance.

    6. Check your browser extension

    Chrome's third-party extensions can occasionally lead to issues. Depending on the number of extensions you have installed, this solution may require some time to test:

    Disable each extension individually and try loading the page. If disabling a particular extension resolves the error, consider uninstalling it entirely.

    7. Clear your cache and cookies

    To determine if clearing your cache will help, try accessing the website in incognito mode or using a different browser. If these options don't work, clearing your browser's cache is a viable solution.

    The process varies based on your browser. For Chrome:

    1. Open Chrome and click on the three dots on the left side of the page.
    2. Choose Clear browsing data.
    3. Ensure that Browsing history and cache are selected.
    4. Wait for the cleanup to complete before reopening the browser.

    8. Clear your SSL cache

    If clearing your browser cache didn't resolve the issue, consider clearing your SSL cache. The SSL cache stores credentials for visited websites to facilitate quicker reconnections. However, if an SSL certificate is updated, the cache may hinder your browser from recognizing the change.

    To clear the SSL state in Chrome on Windows:

    1. Navigate to the Control Panel.
    2. Select Network and Internet.
    3. Under the Content tab, find the Clear the SSL state button.

    9. Change your domain name system server

    Depending on your current setup, consider changing your Domain Name System (DNS) server to or from Google's Public DNS. Before altering DNS settings, note down your current configuration for potential reversion.

    On Windows:

    1. Open the Control Panel.
    2. Navigate to Network and Internet > Network and Sharing Center, then Change adapter settings.
    3. Right-click on your connection and choose Properties.
    4. Select Internet Protocol Version 4 or 6, then click Properties.
    5. Opt for the use of the following DNS server addresses.
    6. For Google's Public DNS, enter and Alternatively, try Cloudflare's DNS: and
    7. Click OK and close the window. Restart your browser for the changes to take effect.