Filezilla upload problems

Need help with FileZilla Server? Something does not work as expected? In this forum you may find an answer.

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diaverso
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Filezilla upload problems

#1 Post by diaverso » 2020-05-03 01:07

Good, I have a dedicated server with the filezilla server, the server has 1G symmetrical internet connection.
https://i.imgur.com/aKXFf8G.png

And on my pc I have 600 symmetric megabytes.
https://i.imgur.com/YeXdUUa.png

The problem I have is that when I am uploading files from my pc to the server, it only uploads 3 megabytes per second at most the file.
I don't know why this problem is due, I don't have limited FTP connection or anything.

Here I insert a small gif, so you can see the connections that it is currently giving me.
https://i.imgur.com/CXqmc6e.gifv

Previously, this did not happen to me, the connections worked at 5 megabytes per second or even at 10, in each upload file.

This is the broadband used at that time on my pc.
https://i.imgur.com/XlzDa7Y.png

This is the broadband side currently used on the server.
https://i.imgur.com/fMcMhYb.png

Does anyone know why this could be happening and how to fix it?

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botg
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Re: Filezilla upload problems

#2 Post by botg » 2020-05-04 07:27

What's the latency between the client and server?

Most likely the server uses a way too small TCP receive window that's far below the bandwidth-delay product of link between the endpoints.

diaverso
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Re: Filezilla upload problems

#3 Post by diaverso » 2020-05-04 08:32

botg wrote:
2020-05-04 07:27
What's the latency between the client and server?

Most likely the server uses a way too small TCP receive window that's far below the bandwidth-delay product of link between the endpoints.
Latencia
https://i.imgur.com/CEFX2Wj.png

How can you change the TCP window?

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botg
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Re: Filezilla upload problems

#4 Post by botg » 2020-05-04 08:45

That depends on the used server software.

In case of FileZilla Server it's the socket buffer size setting on the miscellaneous page in the settings dialog.

Based on the reported latency, the window should be 600Mbit/s * 0.1s = 76MByte/s * 0.1s = 7.6MByte in size.

diaverso
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Re: Filezilla upload problems

#5 Post by diaverso » 2020-05-05 00:36

botg wrote:
2020-05-04 08:45
That depends on the used server software.

In case of FileZilla Server it's the socket buffer size setting on the miscellaneous page in the settings dialog.

Based on the reported latency, the window should be 600Mbit/s * 0.1s = 76MByte/s * 0.1s = 7.6MByte in size.
I am using FileZilla_Server-0_9_60_2
Windows Server 2016

The configuration that I have:
https://i.imgur.com/GlOkCWn.png
https://i.imgur.com/F3xL1EN.png

Transfer with configuration
https://i.imgur.com/jaejj6U.gifv

How can I configure the miscellaneous section, to increase the transfer?

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Re: Filezilla upload problems

#6 Post by botg » 2020-05-06 07:59

botg wrote:
2020-05-04 08:45
In case of FileZilla Server it's the socket buffer size setting on the miscellaneous page in the settings dialog.

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