I just tried root with no password, didn't work for me. I am getting bounced. Rewriting the SD card one more time...
C:\Windows\System32>ssh -l root 192.168.178.184 root@192.168.178.184's password: Permission denied, please try again. root@192.168.178.184's password: Permission denied, please try again. root@192.168.178.184's password: root@192.168.178.184: Permission denied (publickey,password).