After update firmware to 6.42.1 I have a trouble to connect to SSH with error - Corrupt host's key, regenerating it! Reboot required!
reboot doesn't help
[adminmi@Bulgaria] > /ip ssh print
forwarding-enabled: no
always-allow-password-login: yes
strong-crypto: yes
host-key-size: 2048
Try with and without strong-crypto
RouterBoard RB750G