New and pretty clueless to FTP

Hello
I'm trying to connect and keep getting the following message.

421 The connection couldn't be accepted: Software caused connection abort

Does anyone know what could be causing this problem and how to resolve it?

Many thanks.

Please post the complete log.

Here it is:

[07:27:43] ESTA
[07:27:43] AUTH TLS
[07:27:43] PBSZ
[07:27:43] PROT
[07:27:43] 211 End.
[07:27:43] Detected Server Software: PureFTPd
[07:27:43] PWD
[07:27:43] 257 "/" is your current location
[07:27:43] TYPE A
[07:27:43] 200 TYPE is now ASCII
[07:27:43] PASV
[07:27:43] 227 Entering Passive Mode (203,170,86,65,39,34)
[07:27:43] Opening data connection to 203.170.86.65 Port: 10018
[07:27:43] MLSD
[07:27:43] 0 bytes transferred. (0 bytes/s) (78 ms)
[07:27:43] 421 The connection couldn't be accepted: Software caused connection abort

Thanks.

Thanks. That's done the trick!