How to create a TRUSTED ROOT CA?

[Ed_Gonzalez]

Has anyone created a “Trusted Root CA” (root-ca.crt) that is not recognized by the client computer? I followed the guide  for this poc to get the cert:

I did change the name (sblast.lab.local) but everything is the same ....when I import it: 

The docs states there should not be any issues and look like this:

Any ideas how to resolve it or find another means to get a working “Trusted Root CA"?  I also saw SK 113599 but decided to use this doc.

Ed