Windows 10: Can't browse to Letsencrypt.com or other websites with the same certificates.

I noticed about a month ago that one of the desktops at work could not connect to any websites with Let's Encrypt certificates.I tried rebuilding the certificate chain. I am experiencing this problem in Edge/Chrome and Firefox. Aside from what I tried below, what should I do nextI installed the following Root CertificatesISRG Root X1ISRG Root X2 I installed the following cross-signed intermediate certificates.ISRG Root X1 cross-signed by DST Root CA X3ISRG Root X2 cross-signed by ISRG Root X1Lets-Encrypt R3 cross-signed by ISRG Root X1Lets-Encrypt R3 cross-signed by DST Root CA X3

:)

 

There is a problem with this website’s security certificate

Hi,

Thank you for posting on Microsoft Community. I understand the inconvenience you are facing. I will certainly help you with this.

The information which you have provided is not enough for us to determine the issue. Please provide us more information.

• Does this error persist while browsing other websites too?
• Does this error persist while using other browser?

Kindly follow the below given steps and check if the issue persist:

• In Windows Internet Explorer, click Continue to this website (not recommended).
  
  A red Address Bar and a certificate warning appear.
• Click the Certificate Error button to open the information window.
• Click View Certificates, and then click Install Certificate.
  
• On the warning message that appears, click Yes to install the certificate.
  

Please post back with the results and the information asked, we will be glad to assist you further.

Thank you.

 

The security certificate presented by this website was not issued by a trusted certificate authority.

Hello,

Thank you for visiting Microsoft Community.

As per the description, I understand that you’re facing issues accessing your HP Printer homepage. I will certainly help you with the issue.

I would like to know a few information:

• 
  Did you check with any other browser?
  
• 
  Did you make any changes to the software prior to this issue?
  
• 
  Are you using any Antivirus/Security software?
  

I would suggest you to follow the steps mentioned below:

Method 1:

Try viewing the website in Compatibility View and see if that helps.



Note: Not all website display problems are caused by browser incompatibility. Interrupted Internet connections, heavy traffic, or problems with the website can also affect how a webpage is displayed.

a) Open Internet Explorer.

b) Press ALT+T keys, to launch “Tools” drop down menu.

c) In the “Tools” menu, select “Compatibility View Settings” option.

d) In the “Compatibility View” window, add the name of websites (with which you are facing the issue) and then check.

Method 2:

I suggest you to refer to the article mentioned below and check if the issue perists.

Certificate errors: FAQ

Certificate errors: FAQ

Hope this information helps.

Reply us with the status of the issue.

Sincerely,

 

Expired security certificate for Metropcs.com

Hi David,

Getting the error message that says the site is using an invalid security certificate may be caused by missing certificates or could be due to web browser cache issues. To sort out this problem, try manually installing the missing certificates and deleting
the web browser's browsing history. Follow the steps below:

Manually installing the missing certificates.

• In Internet Explorer, click Continue to this website (not recommended), if the error message about having invalid security certificate pops up.
  
• Click the Certificate Error to open the information window.
  
• Click View Certificates, and then Install Certificate.
• On the warning message that appears, click Yes to install the certificates.

Clearing browsing history.

• Launch Internet Explorer.
• Click Tools (gear icon) on the top-right corner, then select
  Internet Options.
• Under General > Browsing history, click Delete.
• Tick the box for Temporary Internet files and website files.
• Click Delete.

Once done, try accessing the website again and see if you still get the same error.

Let us know the result.

Regards.