That’s surprising that only active mode is supported. Usually passive mode is preferred.
Either way, there is an option called transfertype in pub.client:ftp which you can set to ‘active’ or passive. See the BuiltInServices guide documentation.
I am encountering the similar problem with the ftp service. It sometimes
change to passive even though we choose the transfer type to be active mode.
Have you found the solution for this? Thanks.