I have FTP server on non standard port (5021).
To that FTP server I can connect and do actions with FileZilla.
When I try to connect and do upload with jNet FTP, it reports this error:
java.lang.RuntimeException: Error uploading file.
500 Illegal PORT range rejected.
at anywheresoftware.b4a.net.FTPWrapper$2.run(FTPWrapper.java:241)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)