Share this article

This article is translated in

Improve this guide

Fix ERR_SSL_KEY_USAGE_INCOMPATIBLE in 4 Ways

Note that SSL certificates must be renewed periodically

4 min. read

Updated onJuly 1, 2024

updated onJuly 1, 2024

Share this article

This article is translated in

Improve this guide

Read our disclosure page to find out how can you help Windows Report sustain the editorial teamRead more

The err_ssl_key_usage_incompatible error in Chrome indicates an issue with the SSL certificate, affecting the secure connection to a website.

This error can arise from various factors, including outdated Chrome versions, incorrect system time, or problematic extensions. No matter the cause, here’s how to fix it:

How do I fix ERR_SSL_KEY_USAGE_INCOMPATIBLE in Chrome?

1. Update Chrome

2. Disable extensions

3. Use incognito mode

4. Try another browser

You should run your SSL certificate through its tests on another browser that supports this validation. Because Opera One is a privacy-focused browser, we suggest testing it out.

You may handle certificates under Opera One’s Advanced settings and add them as needed. We must also note that Opera is Chromium-based and supports a lot of Chrome’s features and extensions.

So if it gives you fewer headaches than Chrome and you want to make a permanent switch, know that doing it is easy and hassle-free.

Opera

Other things to try

–Create a New Self-Signed Certificate:If using a self-signed certificate, ensure it includes theDigitalSignatureparameter. Use PowerShell to generate a new certificate with the correct parameters:

New-SelfSignedCertificate -Type Custom -DnsName “server”, “server.domain.local”, ‘192.168.0.1’ -KeyUsage “DigitalSignature”,“KeyEncipherment”,“KeyAgreement” -KeyAlgorithm RSA -KeyLength 4096 -CertStoreLocation “cert:\CurrentUser\My” -FriendlyName “YourCertName” -NotAfter (Get-Date).AddMonths(36) -Subject “YourSubject”

–Export and Install the Certificate:After creating the certificate, export it and then install it to the Trusted Root Certification Authorities on your machine. This ensures that Chrome recognizes and trusts the certificate.

–Adjust System Time:Ensure your computer’s clock is accurately set, as incorrect time settings can lead to SSL certificate errors.

–Check for Chrome pduates:Always keep Chrome updated to the latest version to avoid compatibility issues with SSL certificates.

Why does Chrome say err_ssl_key_usage_incompatible?

If you see this message, your web browser has detected a problem with the certificate being used by the website. There are several reasons why this might happen:

How do I update SSL in Chrome?

The SSL certificate is one of the most important components of any website. It provides a secure connection between your browser and the website you’re trying to reach.

Without it,your connection is not secure, and anyone who can intercept your data can see what you’re doing on the Internet.

It is why you need to update it if it is expired. Chrome’s certificate auto-update feature is enabled by default, so you shouldn’t need to change any settings. The browser will automatically download and install new certificates as they become available.

However, you can manually check for updates if you still get the error. If that still doesn’t work, uninstall and reinstall the browser and restart your PC.

You can alsosecure your certificate if Chrome says it’s not validto ensure your identity is always protected.

If you have additional thoughts on this topic, feel free to leave them below in the comments section.

Fix ERR_SSL_KEY_USAGE_INCOMPATIBLE in 4 Ways#

How do I fix ERR_SSL_KEY_USAGE_INCOMPATIBLE in Chrome?#

1. Update Chrome#

2. Disable extensions#

3. Use incognito mode#

4. Try another browser#

Opera#

Other things to try#

Why does Chrome say err_ssl_key_usage_incompatible?#

How do I update SSL in Chrome?#