Certification Validation Failure

[toolcasedba]

I am getting an error while trying to use Anyconnect VPN.

Certification Validation failure.

No Valid certificates available for this Authentication.

I am on a Macbook with Mojave.

Not terribly knowledgeable about certificates.

Any help is appreciated. Thanks.

[Mohammed al Baqari]

Are you the admin of the network. ? If not contact the admin and he has to
disable setting on the firewall or give you working certificate