When installing the Agilicus Connector you may see an error “tls: failed to verify certificate: x509: certificate signed by unknown authority”. This indicates that your site has a SSL-inspecting firewall present (e.g. Palo Alto, Fortinet, Sophos, etc).
This firewall may be redirecting DNS, or, using some other network-based technique to intercept traffic.
See “Site Firewall Configuration” for hints on how to resolve.