Tableau Server Login Issue With Certificate Update

Recently some of the our tableau users reported issues like this:
"Internet communication error: Peer certificate cannot be authenticated with given CA certificates."
Thus they can't connect to the Tableau Server to publish their work.

The Tableau knowledge base article doesn't seem to help:
http://kb.tableau.com/articles/issue/error-peer-certificate-cannot-be-authenticated-with-given-ca-certificate-online-tableausoftware-com

Here is a solution from our IT folks.

1.Open your Tableau server site URL in IE. Click on the "LOCK" sign to the right side.

2. Click on the "View certificates" to open the certificate for the Tableau server.

 3.Click on "Install Certificate"

4.Select the folder "Trusted Root...." and OK.

This should solve your login problem and enable you to login into the server. What this did is to make this site a trusted place to visit.