bug with build 990 and clara.net

Having updated to build 990 I cannot log on to my dial up clara.net webpage. I have no problems using a couple of other FTPs nor are there problems with my NTL and Tiscali ISPs. Curiously I can upload to my Clara site using SmartFTP when logged into NTL and Tiscali although not vice versa. I tried uninstalling build 990 and reinstalling but no change. Increasing the timeout merely increases the wait before the inevitable.

SmartFTP v1.5.990.26
Resolving host name "home.clara.net"
Connecting to 195.8.69.65 Port: 21
Connected to home.clara.net.
220 hera.clara.net FTP server WU + CLARANET ready.
USER fcrammond
331 Password required for fcrammond.
PASS (hidden)
230 User fcrammond logged in. Access restrictions apply 49823744 bytes used (95%).
SYST
215 UNIX Type: L8 Version: BSD-199506
FEAT
500 'FEAT': command not understood.
TYPE I
200 Type set to I.
REST 0
350 Restarting at 0. Send STORE or RETRIEVE to initiate transfer.
PWD
257 "/webspace" is current directory.
CWD /webspace
250 CWD command successful. 49823744 bytes used (95%)
PWD
257 "/webspace" is current directory.
PASV
227 Entering Passive Mode (195,8,69,65,198,18)
Opening data connection to 195.8.69.65 Port: 50706
LIST -aL
Timeout (40s).
Active Help: https://www.smartftp.com/support/kb/74
Client closed the connection.
Automatic failover of data connection mode from "Passive Mode (PASV)" to "Active Mode (PORT)".

I can't find any relevant threads but perhaps I haven't looked hard enough.
Any ideas?

Use active (PORT) mode in the first place to connect to the site.