Can't connect to my droplet via SSH

You can allow ssh from digital ocean droplet console all you need is to run sudo ufw allow ssh command it will enable your ssh again

Hey there I think you need to check whether you are using non-standard ports to connect i.e the typical is sftp://username@xxx.xxx.xxx.xx:22 but in fact if you set non standard ports it could be sftp://username@xxx.xxx.xxx.xx:nn (where n is any number) . Hope that helps someone.

I had this problem for a while, in the end I just had to specify my IP address to the firewall. I did this in the DO Droplet Console.

sudo ufw allow from 15.15.15.51   #add your own IP here (Home or work IP not droplet IP)

More information here: https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-with-ufw-on-ubuntu-16-04