Scenario: A user is unable to launch a virtual desktop through NetScaler. A Citrix Administrator notices a warning on the browser's certificate section. What are two likely causes of this issue?…

3DES is a cipher suite algorithm, not a certificate attribute that causes a browser certificate warning; cipher-related issues would appear as connection or security protocol errors rather than a certificate section warning.

An expired certificate causes all modern browsers to display a warning because the certificate's validity period has passed, making trust verification fail immediately.

If the certificate is not linked to the root CA - meaning intermediate certificates are missing or the CA chain is broken - the browser cannot build a trusted path and displays a warning indicating the certificate is not trusted.

The browser validates the SSL certificate presented by NetScaler Gateway, not one installed on the virtual desktop, so the absence of a certificate on the virtual desktop would not produce a browser certificate warning.