The upload starts with flashfxp at a normal speed, and then the upload speed slows down. The final speed is 0 kb.

My company's new website highlights encyclopedia was launched and encountered this problem when using FTP.

The main manifestation is: the transmission speed starts to be fast, and then gradually decreases in a few seconds, and finally changes to 0. After a while, the system prompts a new connection and overwrites the upload, but the speed remains the same

You have to disconnect and start again !!

This problem has been plagued for a long time.

After contacting the host space customer service, I found that this problem did not indicate my network problems.

But it is clear that the 10 M bandwidth speed of the residential area is no problem.

I haven't searched Baidu for more than half a day.

I flipped through the settings and found that the passive mode of the flashfxp proxy was selected ..

 

 

Try ..

OK

Solve the problem!

Two FTP modes: Standard (port) and passive mode; Active Mode

FTP is a File Transfer Protocol that supports two modes: Standard (active) and passive (PASV, passive mode ). The FTP client in standard mode sends the PORT command to the FTP server. The client in passive mode sends the PASV command to the FTP server.

The following describes how these two methods work:

Standard mode FTP: the client first establishes a connection with the TCP port 21 of the FTP server and sends commands through this channel. When the client needs to receive data, it sends the PORT command through this channel. The PORT command contains the port used by the client to receive data. When transmitting data, the server sends data through its TCP port 20. The FTP server must establish a new connection with the client to transmit data.

Passive Mode: This mode is similar to standard mode when a control channel is established. When the client sends the PASV command through this channel, the FTP Server opens a random port between port 1024 and port 5000 and notifies the client to send data requests on this port. Then, the FTP Server transfers data through this port, at this time, the FTP server no longer needs to establish a new connection with the client.

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