NET::ERR_CERT_AUTHORITY_INVALID Certificate stops working recently in one desktop PC

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. |, so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is:

I ran this command:

It produced this output:

My web server is (include version):
may be windows as my application built on .Net Core 3.0

The operating system my web server runs on is (include version):
Don't know

My hosting provider, if applicable, is:

I can login to a root shell on my machine (yes or no, or I don't know):

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot):

From what I can see, your site should work for the majority of modern devices. What operating system is the device that is not able to access the site?

Hi @Snehal14283, welcome to the LE community forum :slight_smile:

The site will only work securely with clients that have the "ISRG Root X1" in their trust store.
Which operating system (and version) is the system that has the problem?

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