Check The Firewall Logs

The first step when troubleshooting suspected blocked traffic is to check the firewall logs (Status > System Logs, on the Firewall tab).

By default AZTCO-FW will log all dropped traffic and will not log any passed traffic. Unless block or reject rules exist in the ruleset which do not use logging, all blocked traffic will be logged. If there are no log entries with a red  in the firewall logs which match the traffic in question, AZTCO-FW is not likely to be dropping the traffic.