After the installer has finished, the certificates must be added to the list of trusted certificates.
Go to the <InstallDir>/InforTechstackGrid/bin/ folder and select AdminUI.cmd.
Note: Localhost IP address, 127.0.0.1, is used for the user interface for grid administration, which may cause issues in browsers set with elevated security. Alternatively, you can access the user interface for grid administration by using server hostname. See Accessing user interface for grid administration through hostname.
Select Security > IFS.
Click Manage Trusted HTTPS Certificates.
Click Import from Server in the pop-up.
Select the new valid certificate and click Import.