Passive mode FTP doesn't work

I use Comodo version 3 (latest build) and am having trouble using Passive Mode FTP. The network rules seem okay for doing so, and I can connect to the destination server, but the server hangs on LS or directory commands.

If this isn’t a Comodo issue, how might I configure my wireless router to allow outbound passive FTP?

Are you using the default rules for ftp client? Does anything show up in your log? What ftp client are you using? Does it go through a proxy? Passive ftp should be allowed by your wireless router by default.