You can adjust the following settings under the Connection and Transfer tab in the Options > Preferences dialog window.
Connection
Connection timeout (sec.): Period of time during which WISE-FTP tries to connect to a remote system. The connection attempt is cancelled when the time runs out.
Connection attempts: Enter how many times WISE-FTP should retry to establish a connection if the first connection attempt fails.
Wait time before reconnecting (sec.): The period of time WISE-FTP waits between a failed connection and the next connection attempt.
Automatically Dial-Up using default connection: This option allows you to establish dial-up connections automatically.
Terminate Dial-Up connection on exit: A Dial-Up connection will automatically be closed as soon as you close the program.
Use ports range: This setting should only be changed by experienced users and allows you to limit the range of ports used by WISE-FTP.
Transfers
Transfer attempts: Enter how many times WISE-FTP should retry to transfer a file if the first transfer attempt fails.
Max threads: Select how many files are to be transferred at the same time. The maximum value is ten simultaneous transfers.
Warn on view if file larger than (KB): A warning message will be displayed if you want to view a remote file larger than this setting.
Change filename on transfer: Use this setting to define how WISE-FTP should change filenames during upload to a server. The available options are "Don't change", "UPPER CASE", and "lower case".
Auto-resume interrupted transfers: Selects whether or not to resume interrupted transfers automatically.
Limit transfer speed: Allows you to limit the transfer rate. This can be useful if WISE-FTP should not use the entire bandwidth of the Internet connection in order to allow other applications (or other network users) to use the shared Internet connection at an adequate speed.
Use multi-part downloads: Determines whether files should be downloaded in several parts. Define a minimum file size for multi-part downloads and the number of parts into which the file is to be divided. This may help to reduce the number of repetitions for large files and/or very poor connections, since failures will not require the whole file to be downloaded again, but only the defective part of the file.