Whenever I try to upload with NetBean, the log will show that log in successfully, but whenever try to upload or sync file, it will prompt error : Connect Reset. If I am using other FTP client will not get this error.
This is due to bug when using Java to perform FTP task.
All you need to do is open up the command and execute the command:
netsh advfirewall set global StatefulFTP disable
This should resolve the issue.