ssh problem permission denied

Hello,

I recently jailbreak my Apple TV 2 with Jailbreak GreenPoison.

Unfortunately the ssh does not work even after installing openssh and XBMC

Error message: ssh: connect to host 192.168.1.12 port 22: Permission denied

Why?

ps: the jailbreak with firecore did not work. installing this place properly but once theTV plugged nothing has changed.

please help