I've just come across a bug. Was in v4 but have just upgraded to v5.01 and it's still there. In the FTP profiles setup page, if you try to insert a port number higher than 999, (more than 3 digits) the field inserts a comma to the left of the 3rd number from the right so port 50021 ends up being 50,021 which of course fails. Can't seem to get around the problem. Thanks
depending on the FTPS Server configuration, you'll need to open port 21 or 990/989. However, just to be sure, you should contact the FTPS Server admin and ask for directions. Also, keep in mind that for passive mode, as with every other FTP software, you'll have to open additional ports (TCP/UDP) usually something from the range 64000-65000.