Cant login to ftp server

I have been using your free client for several months to access 3 ftp servers, all associated with managing online game servers. Two of the ftp sites are rented from gameservers.com and the other is rented from another unrelated ftp site to store files. Until the other day, I have had no difficulties logging in to any of the 3 but suddenly yesterday, I could no longer login to any of the servers. I've made no changes to my internet, firewall or router. WinXP has not updated recently. I have tried disabling the firewall, forwarding Ports 20 & 21 on the router, tried Active and Passive Modes, have increased Connection Timeout to 120 seconds but all to no avail. My partner has no difficulty accessing the ftp site himself so I know it is not down. No passwords have been altered....it worked one night at 1130pm and the next morning at 830am it didnt. Here is the log that I am getting:
[17:29:26] SmartFTP v2.0.997.4
[17:29:26] Resolving host name "64.37.227.113"
[17:29:26] Connecting to 64.37.227.113 Port: 21
[17:29:26] Connected to 64.37.227.113.
[17:29:27] 220 ProFTPD 1.2.10 Server (www.clanservers.com - Frag! Not Lag.) [64.37.227.113]
[17:29:27] USER xxxxxxx
[17:29:27] 331 Password required for xxxxxxx.
[17:29:27] PASS (hidden)
[17:29:28] 230 User xxxxxxx logged in.
[17:29:28] SYST
[17:29:28] 215 UNIX Type: L8
[17:29:28] Detected Server Type: UNIX
[17:29:28] FEAT
[17:29:28] 211-Features:
[17:29:28] MDTM
[17:29:28] REST STREAM
[17:29:28] SIZE
[17:29:28] 211 End
[17:29:28] PWD
[17:29:28] 257 "/" is current directory.
[17:29:28] TYPE A
[17:29:28] 200 Type set to A
[17:29:28] PORT 192,168,1,103,8,35
[17:29:28] An established connection was aborted by the software in your host machine.
[17:29:28] Automatic failover of data connection mode from "Active Mode (PORT)" to "Passive Mode (PASV)".
[17:29:28] Server closed connection
[17:29:28] Resolving host name "64.37.227.113"
[17:29:28] Connecting to 64.37.227.113 Port: 21
[17:29:28] Connected to 64.37.227.113.
[17:29:28] 220 ProFTPD 1.2.10 Server (www.clanservers.com - Frag! Not Lag.) [64.37.227.113]
[17:29:28] USER xxxxxxxxx
[17:29:28] 331 Password required for xxxxxxx.
[17:29:28] PASS (hidden)
[17:29:29] 230 User xxxxxxxx logged in.
[17:29:29] SYST
[17:29:29] 215 UNIX Type: L8
[17:29:29] Detected Server Type: UNIX
[17:29:29] FEAT
[17:29:29] 211-Features:
[17:29:29] MDTM
[17:29:29] REST STREAM
[17:29:29] SIZE
[17:29:29] 211 End
[17:29:29] PWD
[17:29:30] 257 "/" is current directory.
[17:29:30] TYPE A
[17:29:30] 200 Type set to A
[17:29:30] PASV
[17:29:30] An established connection was aborted by the software in your host machine.
[17:29:30] Server closed connection

Any thoughts? Thanks in advance