# FTP Issues Downloading and Uploading

**URL:** <https://forum.storj.io/t/ftp-issues-downloading-and-uploading/24113>\
**Category:** Product Discussions\
**Tags:** filezilla\
**Created:** [October 25, 2023, 4:44am UTC](https://forum.storj.io/t/ftp-issues-downloading-and-uploading/24113 "2023-10-25T04:44:33Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![Alexey](https://storj.bcdn.literatehosting.com/user_avatar/forum.storj.io/alexey/32/41_2.png) [@Alexey](https://forum.storj.io/u/Alexey)\
**Post date:** [October 25, 2023, 5:30am UTC](https://forum.storj.io/t/ftp-issues-downloading-and-uploading/24113/2 "2023-10-25T05:30:55Z")

</div>

When you use a native integration, it opens for uploads 130 connections in parallel for the each segment of the file (64MiB or less), when the first 80 are uploaded all remained are canceled.  
If you want to have a more stable uploads, you need to increase a parallelism (how many segments the libuplink can upload in parallel), in FileZilla it’s located in the menu **Edit** → **Settings** → _ **Transfers** _ → **Limit for concurrent uploads**.  
You may use [rclone](https://docs.storj.io/dcs/third-party-tools/rclone) instead:

```auto
rclone copy --multi-thread-streams=8 --multi-thread-cutoff=64M -P "c:\Users\shiny\Downloads\Twisted Metal (USA).chd" storj:emulation/PS1

```

or with [uplink](https://docs.storj.io/dcs/api/uplink-cli):

```auto
uplink cp --parallelism=8 "c:\Users\shiny\Downloads\Twisted Metal (USA).chd" sj://emulation/PS1/

```

The number of threads (or concurrent uploads/downloads) will affect how much connections it will open and how much memory and CPU will be used. If your router is not capable to handle so much connections, this may reduce the speed or increase the number of retries.

Errors during download are related to unstable connection. With a native integration it opens 35 connections for the each segment and downloads in parallel. When the first 29 are downloaded all other are canceled.  
If you upload and download in the same time, it may overload your router if it’s not capable to handle so much parallel connections. So you may reduce the number of parallel transfers in the menu **Edit** → **Settings** → _ **Transfers** _ → **Maximum simultaneous connections**

 ![image](https://storj-s3.bcdn.literatehosting.net/original/2X/3/3244f246e1d5f8515f9a97e26df268939cf0c0b8.png)

If you upstream or downstream bandwidth of your internet connection are small (less than 25Mbit for upstream and less than 100Mbit for downstream), perhaps it’s better to use an S3 integration instead, it’s supported by [FileZilla PRO](https://docs.storj.io/dcs/third-party-tools/filezilla/filezilla-pro), [Cyberduck](https://docs.storj.io/dcs/third-party-tools/cyberduck), [rclone](https://docs.storj.io/dcs/third-party-tools/rclone/rclone-s3) and many others.

See also

> [@Hotrodding Decentralized Storage](https://forum.storj.io/t/hotrodding-decentralized-storage/15228):
>
> Preface Greetings everyone. We have been working on some exciting performance enhancements and wanted to share them with the community and solicit feedback. I hope you have as much fun with this as I have had! Before we commit this to our documentation we’d like to get your feedback and questions. -Dominick Storj DCS Performance Overview Performance Basics In decentralized storage, the concept of parallelism has a huge effect on performance. As you will read below we can enact parallel ef…

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