'Declaration
 
Public Property KeepAliveInterval As Integer

'Usage
 
Dim instance As FtpClient
Dim value As Integer
 
instance.KeepAliveInterval = value
 
value = instance.KeepAliveInterval

public int KeepAliveInterval {get; set;}

Property Value

This property currently only applies to file transfers. Setting this property can be useful to prevent routers from prematurely closing the command channel while a long data transfer is taking place. It is generally not necessary to set a value less than 15 minutes (900 seconds).

Not all FTP servers support receiving NOOP commands during file transfers.

It's been observed that these servers will act strangely, not reply to the command, or only send the reply after the file transfer has completed. This will cause the component to throw a timeout exception since it's expecting a reply within the timeout period.

If you see this behavior, consider not using this property

.NET: net5.0, net5.0-windows, net6.0, net6.0-macos, net6.0-windows, net7.0, net7.0-macos, net7.0-windows, net8.0, net8.0-browser, net8.0-macos, net8.0-windows, net9.0, net9.0-browser, net9.0-macos, net9.0-windows, net10.0, net10.0-browser, net10.0-macos, net10.0-windows.

.NET Standard: netstandard2.0, netstandard2.1

.NET Framework: net20, net35, net40, net403, net45, net451, net452, net46, net461, net462, net463, net47, net471, net472, net48, net481.

Reference

FtpClient Class
FtpClient Members