Error in Teams

Question

ERR_CERT_AUTHORITY_INVALID getting this error while connecting in teams through my organisation ID using Windows 7 ultimate

Answer 1

Hello @sarthak gupta ,

This is related to a certificate issue in your local computer.

You can fix this by adding your root CA cert with certutil

You may refer some examples here to carryout the certificate import : https://stackoverflow.com/questions/23869177/import-certificate-to-trusted-root-but-not-to-personal-command-line

Please mark as "Accept the answer" if the above steps helps you. Others with similar issues can also follow the solution as per your suggestion

Regards,

Manu

Answer 2

Hi @sarthak gupta
First thing, you can change your DNS to Google DNS in Network Connection.
In addition, you can check:

• Date and time in your computer
• Proxy settings for internet connection
• Any restriction from antivirus?

Hope it works.
Thank you

Answer 3

Hi sarthakgupta-0705!

I also agree with ManuPhilip idea. The error is related to certificate issue.

It recommends you try to add your root CA with certutil:

As a supplement, you can refer to:

https://www.computertechblog.com/import-a-certificate-to-trusted-root-certification-authorities-using-command-prompt/