Response: 421 I can't accept more than 1 connections

[framus]

I started Filezilla and installed updates for Version: 3.5.1. I connected to a server and was uploading some files. At one point I got error 421. I shut Filezilla down and restarted it with the same result. The message Log for the last session follows. Can anyone help?

Windows 7 Home Premium

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Status: Resolving address of framus.freewebspace.com
Status: Connecting to 64.136.20.52:21...
Status: Connection established, waiting for welcome message...
Response: 220-FTP server ready.
Response: 220 This is a private system - No anonymous login
Command: USER framus.freewebspace.com
Response: 331 User framus.freewebspace.com OK. Password required
Command: PASS ********
Response: 230 OK. Current restricted directory is /
Command: SYST
Response: 215 UNIX Type: L8
Command: FEAT
Response: 211-Extensions supported:
Response: EPRT
Response: IDLE
Response: MDTM
Response: SIZE
Response: REST STREAM
Response: MLST type*;size*;sizd*;modify*;UNIX.mode*;UNIX.uid*;UNIX.gid*;unique*;
Response: MLSD
Response: TVFS
Response: ESTP
Response: PASV
Response: EPSV
Response: SPSV
Response: ESTA
Response: 211 End.
Status: Connected
Status: Retrieving directory listing...
Command: PWD
Response: 257 "/" is your current location
Command: TYPE I
Response: 200 TYPE is now 8-bit binary
Command: PASV
Response: 227 Entering Passive Mode (64,136,20,52,41,247)
Command: MLSD
Response: 150 Accepted data connection
Response: 226-ASCII
Response: 226-Options: -l
Response: 226 14 matches total
Status: Directory listing successful
Status: Retrieving directory listing...
Command: CWD tffsmileys
Response: 250 OK. Current directory is /tffsmileys
Command: PWD
Response: 257 "/tffsmileys" is your current location
Command: PASV
Response: 227 Entering Passive Mode (64,136,20,52,41,251)
Command: MLSD
Response: 150 Accepted data connection
Response: 226-ASCII
Response: 226-Options: -l
Response: 226 2 matches total
Status: Directory listing successful
Status: Resolving address of framus.freewebspace.com
Status: Connecting to 64.136.20.52:21...
Status: Connection established, waiting for welcome message...
Response: 220-FTP server ready.
Response: 220 This is a private system - No anonymous login
Command: USER framus.freewebspace.com
Response: 331 User framus.freewebspace.com OK. Password required
Command: PASS ********
Response: 421 I can't accept more than 1 connections as the same user
Error: Could not connect to server
Status: Delaying connection for 5 seconds due to previously failed connection attempt...
Status: Resolving address of framus.freewebspace.com
Status: Connecting to 64.136.20.52:21...
Status: Connection established, waiting for welcome message...
Response: 220-FTP server ready.
Response: 220 This is a private system - No anonymous login
Command: USER framus.freewebspace.com
Response: 331 User framus.freewebspace.com OK. Password required
Command: PASS ********
Response: 421 I can't accept more than 1 connections as the same user
Error: Could not connect to server
Status: Delaying connection for 5 seconds due to previously failed connection attempt...
Status: Resolving address of framus.freewebspace.com
Status: Connecting to 64.136.20.52:21...
Status: Connection established, waiting for welcome message...
Response: 220-FTP server ready.
Response: 220 This is a private system - No anonymous login
Command: USER framus.freewebspace.com
Response: 331 User framus.freewebspace.com OK. Password required
Command: PASS ********
Response: 421 I can't accept more than 1 connections as the same user
Error: Could not connect to server
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[boco]

Your server is configured overly restrictive. Deliberately broken, I'd say, because modern FTP clients by design use more than one connection to the server.

Please follow the below procedure and reduce # of connections to 1:

http://wiki.filezilla-project.org/Using ... ed_servers