56K is over-rated. From my experience with 56K connections, average transfer speeds are about what you're saying (although protocol can make a difference). There are so many different independent and dependent factors on how fast your connection speed is (ISP traffic, network capabilities and traffic, network accessing applications, etc, etc, etc....). Go with the flow....DSL or Cable (that is, if you can
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PORT mode might not work with 56k, but you can try it anyway. I think, by default, there is PASV button on the toolbar. Deselect this when connecting to a server you don't want to use passive mode. If you don't want to use passive mode for any servers: Tools > Settings > Connection > Switch to Active mode FTP. Some of your favorites may also be set to use passive mode. To change this: Favorites > Edit Favorites > Right-click favorite item > Properties > "Advanced" tab > Uncheck "Use Passive Mode".