Unable to service port commands (500) while attempting a FTP

[Evangelion128]

Just like in the topic: while attempting to connect to a FTP, I authenticate properly, log on but can't download the directories and get the following error message:

PORT command failed

+ (background)

Get directory: 500 unable to service PORT commands

What seems to be the problem? I only get this with one FTP, I've tried 5 other and never had a similar problem.... HELP!

[SanskritFritz]

Turn on passive mode for the FTP, you are probably behind a firewall.

[Evangelion128]

Thanks. Now how did I forget that - guess you can always get more dumb thany you were previously ;>

[SanskritFritz]

you can always get more dumb thany you were previously

Hehe. I hope this is not true. But experience says ... wait that can substitute wisdom