The silent installer command does not succeed. In the log file the error stated that the login failed for the Foglight Agent Manager server computer account "Login failed for user 'Domain\servername$'". But that account has never been set in the installer file.
In the installer file "silent_installer_input_qa.csv" the selected Windows Authentication Type is "Windows_Default_Account" - example:
MyNewAgent,<hostname>,,1433,Windows_Default_Account,<DB account>,<password>,,,,true,Windows_Default_Account,<OS account>,<password>,false,,,,,
When selecting Windows_Default_Account the local account used by the Foglight Agent Manager will be taken to connect to the database and/or operating system. The user/password given in the installer file will be ignored.
If a specific account should be used, please use Windows_Custom_Account instead of Windows_Default_Account.