Error net::ERR_CERT_AUTHORITY_INVALID: what is it, and how to fix it?

Quite often the browsers like Google Chrome or Yandex when you try to log on a website give the user an error message net::ERR_CERT_AUTHORITY_INVALID. Most ordinary users don't know what to do in such a situation, because the message appears again and again. But then all you need to get your hopes up: this error is mostly specific to a single or two resources, not all sites on the Internet (although it is possible to meet and such). It is further proposed to consider the causes of this failure, and basic techniques to remedy the situation. All the solutions are very simple, and use them can any man, not even remotely having a clue about network settings and access to the Internet. However, let's start with the most simple – determine the causes of this phenomenon, and only then will decide on the optimum method of eliminating the failure.

What does the error net::ERR_CERT_AUTHORITY_INVALID?

This message appears in the browser usually indicates that it has either its own security system, or the Windows tools or antivirus software, which often tends to give false alarms (take the same Avast, about which complaints and unflattering reviews on the Internet just do not count).

But what does the notice itself? If you translate the contents, so to speak, normal language, we get the error invalid certificate for a resource that are going to attend. In browser with Russian interface error usually appears in the form of the message “Your connection/the connection is not protected”.

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If we talk about the error net::ERR_CERT_AUTHORITY_INVALID certificate when access is not confirmed, and protection was deliberately blocking the website, insulating a certificate of the user from unverified publishers. Sometimes the meaning of this is, especially when it comes to privacy, but if the user previously visited the website without any problems, and the error appeared much later, this is a clear violation of the browser.

Crash net::ERR_CERT_AUTHORITY_INVALID: how to fix the simplest method?

For a start, many experts recommend to close the browser and do a full restart of the operating system. It is believed that such failures may be transient and the core issue of the relationship do not have much.

On the other hand, the appearance of the error message net::ERR_CERT_AUTHORITY_INVALID for failing to establish a secure HTTPS connection (this acronym will be spelled out at the beginning of the address bar). Try instead to write the address, starting with HTTP. Access may be obtained.

Settings > date and time

Ironically, the advent of a failure with a description like net::ERR_CERT_AUTHORITY_INVALID may be due to improper settings of time and date. What is most interesting, changing these options in Windows can result not give.

Therefore, initially, you should reboot and login to the primary system BIOS or UEFI. Usually on the main tab, General options and settings a set the date and time (something like Standard CMOS Setup). Change the settings in this section, save the changes and after restart try to check the access to the previously requested resource.

Disable the protective system

But, for example, in the browser, you again receive the error message net::ERR_CERT_AUTHORITY_INVALID. What to do in this situation?

Many experts agree in opinion that not the last role here is played by the installed anti-virus and the inbuilt Windows firewall (aka firewall). To get started, simply use the temporarily disable protection in the antivirus and check the access status.

If this does not help, call your firewall settings or from the standard “control Panel”, or via the menu “Run” command firewall.cpl, and completely unplug. Of course, the system will give a warning about the fact that, well, this is not recommended, but do not pay attention.

Check proxy settings

Finally, one of the problems of occurrence of failure can be incorrect settings of the IPv4 Protocol. To check them, go to properties of the network adapter through the network connections, go to options Protocol IP version four and disable the use proxy for your LAN if this option is enabled.

We should also say that, if your ISP does not support IPv6 service, it in the adapter settings must be deactivated by ticking the relevant item.

If after you save your settings and a full reboot does not help, again use the configure IP version four, but as addresses of the DNS servers list free configuration Google instead automatically obtain the addresses.

Set up encryption

The latest version resolve the problem without resorting to drastic methods like reset or even reinstall the system is that in “the network and sharing Center” to change the sharing settings.

In thiscase we are talking about how to install 128-bit encryption and to activate access to the network with password protection (the first three positions, just above, must be fully disconnected).

Tips for last

In this case remains to say that all considered decision, one way or another, the problem of the emergence of the described errors is eliminated. That's just to apply several methods simultaneously is not necessary, because so far it is not clarified, what is the main failure.

If you want to simplify your task, you can first disable all browser extensions, but it works only with Google Chrome. Alternatively, you can use the full reset browser settings. But if the operating system is initially set to an incorrect TCP/IP settings in making use of proxies, the desired effect can not give.