# tls: failed to verify certificate: x509: certificate signed by unknown authority

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](https://www.agilicus.com/anyx-guide/signup-firewall-configuration/)" for hints on how to resolve.