Hi catastrofus,
I renamed my id_rsa to id_dropbear and id_rsa.pub to id_dropbear.pub
AND IT WORKS !!!!!! you soved it.
Now I can do passwordless connections from both sides of my solo2.
I am so grateful for your help . Thank you. Thank you very much !
In the future I'll make sure to take more notice with the help of "-h" flags.
Best regards,
Bixo