I forgot my password Piratebox.

Hello! I have a problem! Failure has occurred that I had in my pendrive piratebox with tp-link wr3040. I got a new flash drive and when I try to connect via telnet connection refused tells me, but if I try to access via ssh-l root 192.168.1.1 asks for my password and, unfortunately, do not remember which one has put it, I tried the general ones but nothing to do. How can I restore it? Reading on the internet I seemed to understand that there is a security mode for my tp-link mr3040 st. 2.1.
How do I?