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How To Fix net::err_cert_authority_invalid error (Solved)


Are you getting net::err_cert_authority_invalid error on Google Chrome?

If yes then read this guide to fix this error.

As you may already know that Google Chrome is the most popular web browser.  It is widely accessed by users on desktops as well as on smartphones.

They have always tried to make Google Chrome secure for its users. Maybe due to this, it has been considered as the most trusted web browser. But sometimes may users get errors and I am here to fix those errors.

In this post, I will be talking about why you are getting this error and how to fix it.

What is net::err_cert_authority_invalid error?

If you are getting net::err_cert_authority_invalid error on Google Chrome it means there is a problem with the certificate authority that had issued the SSL certificate or there is a problem on your PC. Most of the cases you will get the error due to expired SSL certificate installed on the webserver where the website hosted on.

Why net::err_cert_authority_invalid error occur?

Basically, there are two main reasons for receiving this kind of error:

  • The Certificate authority that had issued this certificate is not trusted or the certificate has expired
  • and Your system date and time are not correct.

These kinds of certificates are used by inappropriate authorities or hackers to represent an established and trusted website. So you should not take these kinds of notifications lightly as they can be dangerous for you. The best way is to contact the owner of the website and complaint them about the issue you are facing.

Another way is to add the root certificate manually. But this method should only be tried if you are an IT person and your company has hired a private CA.

Out of all, we suggest you use the first method. Contact the site owners and wait for some time until they fix the issue.

Steps To Fix net::err_cert_authority_invalid error

So, here are the steps to fix the error. Most of the cases the first solution is enough to fix this issue.

Solution 1: Set Correct Time And Date (Recommended)

Many of the times, chrome may display an error as NET:: ERR_CERT_DATE_INVALID. Don’t worry; you don’t need any computer software to resolve it. It can be resolved very easily. This error is highlighted due to improper time and date update on your desktop.

You can fix it just by modifying the date and time according to your specific time zone and all the things will settle down accordingly.

Solution 2: Check Prevent Warning

fix err_cert_authority_invalid

As you have known that, ERR_CERT_AUTHORITY_INVALID is a chrome error when user system is not compatible with the user’s website.

This can be an indication of an outdated system or a disabled network connection. Other than that, a portion of the operating system is not supporting the updated version of SSL certificate encryption algorithm.

If your certificate is from an invalid certificate authority (CA) Google chrome set off an error like ‘your connection is not private or ERR_CERT_AUTHORITY_INVALID.

To solve this kind of error, you need to contact the admin of website and ask for a trusted SSL certificate from the authorities and get it installed.

To resolve the err_cert_authority_invalid error, follow the steps given below:

  • Start by Opening your Google Chrome browser and then, type chrome://flags.
  • Click on Enter button and you will find many options.
  • Just scroll down and find this specific option that says Remember decisions to proceed through SSL errors for a specified length of time section.
  • When you find it, choose options from the drop-down menu given in the section.
  • You will now see that the given drop-down menu has a time period that is preventing the SSL certificate warning for a definite amount of time.
  • In the end, close the page and click to refresh your browser.

Other Methods To Fix this issue:

If you are still getting the same error then please read the possible reasons that I have mentioned below.

  • Check whether your connection is activated or inactivated. If the connection is inactivated turn it on. Now try again to access that website.
  • This error could also be displayed due to expired cookies. You have to clear all the previous cookies or there is an option. You can access that website in incognito mode or CTRL + SHIFT + N.
  • This error is a common complication in old versions of the operating system. You need to update your system to resolve this error.
  • Check whether any antivirus is not creating such an error. Sometimes, antivirus blocks the HTTPS from some suspicious sites. In such a case, you need to turn off that antivirus application for some time until you are accessing the site.

Look For an Expired SSL certificate:

Sometimes, there may be a chance that your SSL certificate gets expired, Google will block all the access and will show an error. In such conditions, rapid action is required. Contact the admin of website for renewal or new purchase of the certificate so you can reinstall it.

Check if the SSL is not installed properly:

It is very important to install the SSL certificates properly so that it does not interrupt in your work. If some problem is caused due to the improper installation of certificates, google chrome will notify errors. in such kinds of errors kindly check that the certificate is installed properly. If not you can use the SSL installation guide to reinstall it on the server.


I hope you are able to fix the net::err_cert_authority_invalid error. If you are not able to fix and still getting the error after applying all steps then please let me know via comments down below. In my believe your issue should be fixed if you have already followed my steps. Always make sure you have set the correct time and date.

Photo of author

Sunil D.

Hi, I am Sunil a Tech enthusiast, PC builder, and Gamer. I have been building PC since 2012. At Guildcafe, I review various products such as Motherboards, CPUs, Graphics Cards, Laptops, etc.

21 thoughts on “How To Fix net::err_cert_authority_invalid error (Solved)”

  1. Please, i need help with my web error ERR_CERT_AUTHORITY_INVALID MY NUMBER 773078022, MY ACCOUNT FB ATTACKS HACKER MY EXBOYFRIEND, THIS PROBLEM HAD POLICI. I lost access with my fb account Edita Ouhrabkova,please helo

  2. Hi

    Original Androi 4.4.2 on my Samsung Tablet SM-T520. Date and Time are correct.
    But always the mistake err_cert_authority_invalid.
    Samsung Browser (original) no more running, Chrome-Browser not running, Firefox running at many websites but not at all.

    Ist my Android-System really to old? Sh*!

  3. Can’t find “Remember decisions to proceed through SSL errors for a specified length of time section” after open a new chrome, then browser chrome://flags page. There are many flags. But I turn it over again and again, can find that Remember decisions to…” flag.
    The “ERR_CERT_AUTHORITY_INVALID” error in showing on my MacBook Pro”
    Please help. Thanks

  4. I’m not having luck resolving the issue. I am having the same problem on Safari. I have a 2009 MacBook Pro. Could it be that my OS is not up to date? I can’t update it anymore because my computer cannot handle the newest operating system. Maybe I just need a new computer?

  5. I have tried almost everything except wipe my phone clean to fix my google auth net. Error ect.
    I know there has to be a fix to this.
    I dont want to have to go and back up all my files and wipe my phone I have internet connection its just all google services and apps aren’t working. ????? Dns ..certificate… authentification I dont know what it is but my phone service has nothing to do with it. Can some help me?? I obviously will not receive emails with this problem. So hope to see a post.

  6. Can’t find “Remember decisions to proceed through SSL errors for a specified length of time section” after open a new chrome, then browser chrome://flags page.

    Same for me.

  7. Thank you ! I’d booted up an old laptop and couldn’t get past the certificate error on internet explorer…. I looked at various sites, played with loads of settings… then I read your info and noticed the system date was 15 years out, I set that and it works !

  8. when conected to vpn and check my IP shows this NET::ERR_CERT_AUTHORITY_INVALID
    but when turn nord vpn off NO problem whit this
    and this happened after the last upgrade of nord VPN

  9. My error is NET::ERR_CERT_VALIDITY_TOO_LONG. I can’t seem to resolve with chrome and safari on a MacBook Air. Thanks

  10. New Win10 computer. Get this error on every site that I have tried. For some sites, Advanced says that it is untrusted SSL certificate and lets me proceed; other sites (including Google search!), Advanced says it is because site uses HSTS. Get a similar error message in Edge. Tried turning off Windows Defender (I can’t install any other antivirus because I cannot connect to the websites), but that didn’t help. (re other antiviruses – I downloaded the Avast! installation exe on another computer and copied it; it ran and installed Avast! (downloaded the installation files) but I can’t activate it because it can’t connect to Avast!). Any suggestions?


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