IDA documentation
FTP Explorer
Internet Download Accelerator user guide.
Options - Other - FTP Explorer
Maximum number of errors (number of attempts)
IDA will attempt to connect to a site or folder the specified number of times. After that, state of the site or folder will be set to "error".
Clear the site list after closing FTP Explorer
If the flag is set, then all open sites will be closed when quitting FTP Explorer.