首先，确认您的本地电脑ftp客户端采用主动模式（Port）还是被动模式（PASV）。

假如本地电脑ftp以客户为主动模式，需要确认您在服务器上开通了高端端口，并且在服务器上FTP Server这些端口些端口。

假如本地电脑ftp如果客户端使用被动模式，您需要打开当地数据交互（关闭当地防火墙）的相关端口，但如果您的网络结构有限（如防火墙、路由限制），可能导致正常使用，频繁连接中断。

原文链接：FTP经常中断上传 - 冬邦互联】

如排除上述问题，请确认您当地的网络环境是否稳定，您的服务器带宽是否满；

若排除上述问题，请确认在 ftp server 数据传输器)的数据传输超时设置足够大:例如，在 Linux 上使用 vsftp 需要修改时间 /etc/vsftpd/vsftpd.conf 文件里的 data_connection_timeout 参数。

在 Windows 系统操作复杂：Overview

The <connections> element specifies the connection-related settings for FTP sites. More specifically, the settings in the <connections> element control the behavior for the FTP service with regard 路由网 to how to manage clients that are connecting to an FTP site.

For example, the unauthenticatedTimeout, controlChannelTimeout, and dataChannelTimeout attributes specify the time-outs for an FTP site. The settings specify, respectively, when the FTP service will disconnect an FTP client that has not successfully logged in or is idle, or when to disconnect an idle data connection. Specifying values for the attributes in the <connections>element can directly affect the overall performance of your server by helping to police the number of active client sessions for your FTP sites.

Note

The FTP 7.0 and FTP 7.5 services shipped out-of-band for IIS 7.0, which required 路由知识 downloading and installing the modules from the following URL:

https://www.iis.net/expand/FTP

With Windows 7 and Windows Server 2008 R2, the FTP 7.5 service ships as a feature for IIS 7.5, so downloading the FTP service is no longer necessary.

To support FTP publishing for your Web server, you must install the FTP service. To do so, use the following steps.