Looks like the right commands, have you been able to reconnect after the reboot completed?
Can you get to the box physically?.
I have had in the past, but only once out of many, and on a box with many contrib modules installed, an issue where after updating the box it reset the remote access stuff.
You may need to get someone at the other end (if you cant) reset the remote access to at least ssh (public / administrative).
Cheers
CB