If your vRealize Automation deployment uses untrusted certificates, before you can use remote consoles with VMRC, you must configure your client browser to trust the certificate, The steps to do this vary by browser.
If vRealize Automation is configured with a trusted SSL certificate for your environment, then VMRC does not require additional configuration on client browsers. When a vRealize Automation appliance certificate is replaced and is a trusted certificate, there is no need to update certificate information for the Web browser client.
If you want to replace the certificate, see the topic on replacing a vRealize Automation appliance certificate in the System Administration guide for vRealize Automation.
Remote connections using VMRC for machines provisioned on vSphere are secured by vRealize Appliance certificates through a proxy console. VMRC requires WebSockets support in the browser and browsers must trust the vRealize Appliance certificate. The certificate can be obtained by going to the root-level virtual appliance at an address of the form https://vra-va.eng.mycompany.com/.
For information about support requirements for browsers and vSphere, see the VMware vRealize Support Matrix.