Hmmmm also very sorry for time wasting. As it happens I have resolved the issue and it was neither your ftp client nor the server but with simeji IME that somehow put invisible spaces in the credentials. Most annoying however resolved. It works perfectly and I have to say I am extremely happy with y...

Ok this is driving me a bit loopy but I have exhaustively tested this out. It is completely irrelevant if the ftp server is windows 2003 or linux, I have tried over ip or dns resolved name, internal server and external server, anonymous or account. Anyway you get the idea but the end result is still...