Therefore, there are also plenty of potential fixes for it. How to Fix the NET::ERR_CERT_COMMON_NAME_INVALID Error (9 Methods)Īs you now know, there are many possible causes of the NET::ERR_CERT_COMMON_NAME_INVALID error.

A persistent error could still harm your site’s credibility and prevent you from growing your traffic, so it’s best to find the source of the issue and resolve it quickly. It will also provide a few potential solutions for visitors, such as adding or removing “www” from the URL they entered. The one that indicates a problem equivalent to the NET::ERR_CERT_COMMON_NAME_INVALID error in Chrome typically reads: “The security certificate presented by this website was issued for a different website’s address.” Like many other HTTPS-related errors, Google Chrome indicates that there’s a common name mismatch by showing a “ Your connection is not private” warning:Ī security certificate warning in Internet Explorer Here’s what this problem looks like in the most popular clients on the web. First, however, you need to be able to recognize it in your browser. We’ll dive into the solutions to the NET::ERR_CERT_COMMON_NAME_INVALID error shortly. NET::ERR_CERT_COMMON_NAME_INVALID Error Variations

This can make it hard to pin down the correct solution, but a little patience will go a long way towards helping you fix the problem. Your browser cache or SSL state has become corrupted.Īs you can see, many different factors can contribute to the NET::ERR_CERT_COMMON_NAME_INVALID error.A browser extension is interfering with your site’s SSL connection.Your antivirus software is blocking your SSL connection.Your site has a self-signed SSL certificate installed and your browser does not recognize it as valid or secure.You tried to switch your website to HTTPS without first installing an SSL certificate.Your SSL certificate does not account for www versus non-www variations of your domain.However, there are other scenarios that could lead to this message appearing in your browser, including: Often, this means that the name on your certificate does not match the domain it’s installed on. So as the error message states, the root problem behind NET::ERR_CERT_COMMON_NAME_INVALID is that the common name on your SSL certificate is not valid for some reason. The ‘common name’ this error references is the domain on which an SSL certificate is installed.įor example, if you have a website at, the common name on your SSL certificate would be. Understanding What Causes the NET::ERR_CERT_COMMON_NAME_INVALID Errorīefore we dive into what causes the NET::ERR_CERT_COMMON_NAME_INVALID error, let’s break down the relevant terms.

Google invalid security certificate