Edimax Technology IC-7100W - Manual (Page 71)

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know, please ask FTP server
‟s administrator; most of
FTP servers will work fine with both modes, but if you
found that non-passive mode is not working, you can try
to use passive mode.
Click
„Apply‟ to save settings and make the new settings take effect.
After that, you can click
„Upload a test file‟ to send a file to the FTP server you
set here, so you can make sure the setting you specified here is correct and
working.