dropbear client : No auth methods could be used

[dropbear@pivert.org]

Hi, I have a problem that I can't solve with dropbear.

I have a workstation that I can log to from anywhere, except from my OpenWRT 
that has dropbear-client instead of OpenSSH.
With dropbear, I can only ssh to localhost (dropbear-server).

Using dropbear-client and password interactive.

root at star:/etc# ssh 192.168.1.3
ssh: connection to root at 192.168.1.3:22 exited: No auth methods could be used.

What's my problem ?

Thanks !