Destination host unreachable? Did you log in via console?

Restart the network manager service:

/etc/init.d/networking restart

Then you SHOULD see something like this but different gateway IP:

root@narbeh-vps:~# ip route show
default via 46.101.192.1 dev eth0

If yes –> Try checking the iptables to see if it blocks the outgoing traffic or not
If not –> You might have altered routing table or networking file. Try addind default route for your droplet