SSH Refuse Connections After 'reboot now'

[mvaragao]

Hi,

 

I'm using several Orange Pi Zero boards.
At any given time, when I run "reboot now", I can no longer access the OPI via ssh.
I tested the following distributions:
Armbian_5.25_Orangepizero_Ubuntu_xenial_default_3.4.113
Armbian_5.59_Orangepizero_Ubuntu_xenial_default_3.4.113
All the programs I installed, which start from boot normally work, but I can not access via SSH.
Is there any corruption of ssh files?

 

Thank you for your help