Have the same problem, can't login. I've "disabled" the certificate.
I get
Connecting to 192.168.1.12
Connected to 192.168.1.12 Port 9999
220 ioFTPD [www:
http://www.ioftpd.com] - [version: beta 5] server ready.
USER ioFTPD
331 Password required for ioFTPD.
PASS (hidden)
530 Login failed
when I try to connect
And I use the default master account to login, with the password ioFTPD
Also tried with a certificate installed get the same error.
why???