This means Firewall Analyzer has discovered your firewall and is able to recognize the logs. By default, as soon as you login, Firewall Analyzer shows data from current day's 00:00:00 hrs to current time of the machine where you are running Firewall Analyzer. There is a possibility that the firewall logs timestamp could be different from the Firewall Analyzer's timestamp. So just check Firewall_Analyzer_Home/server/default/archive/ directory to view the firewall logs timestamp.