FileZilla Forums

First: When uploading large files, it is found that as long as no action is taken for more than 15 minutes, an error message will be displayed. Using flashFXP to upload everything is normal. As shown in the picture.

Secondly: it cannot be connected to "storj".

Which FTP server software are you using? APPE is only used on server that don't advertise support for REST STREAM in the output of the FEAT command.

The server software is serv-u. But I use FlashFXP client to transfer large files and everything is fine, there is no problem of 15 minutes disconnection.

Most likely a faulty firewall or NAT router is closing the control connection that sits idle during transfers.

But I use FlashFXP client to transfer large files and everything is fine, there is no problem of 15 minutes disconnection.

What TCP keep-alive interval does your other client use? I reckon it doesn't even realize that the connection has died.

First of all, with FlashFXP you can transfer large files in their entirety (even if they last more than a few hours). Second, since you do not admit that there is a problem with the FZ client, I have to give up using it.
I tell you this problem, the intention is want your software to do better, to your reply is very disappointed.

FileZilla isn't the one closing the connection.