ATEN Altuscn Matrix KVM Switch KM0532 - Manual (Page 135)

Appendix
123
Trusted Certificates
Overview
When you try to log in to the device from your browser, a Security Alert
message appears to inform you that the device’s certificate is not trusted, and
asks if you want to proceed.
The certificate can be trusted, but the alert is triggered because the certificate’s
name is not found on the Microsoft list of Trusted Authorities. You can ignore
the warning and click Yes to go on.