I recently had a problem with Godaddy ubuntu 16.04 VPS, after updating and upgrading the system:
apt-get update apt-get upgrade reboot
SSH port wasn’t anymore reachable, it’s the only access we have to the server, however other services are working normally, so the system is still running. I tried many times to restart, call the support, but it didn’t solve the problem. The only solution was to destroy the server and rebuild it from scratch + restoration of backups.
I’ve also tested the upgrade with a clean and freshly installed system, same issue occurred. If you’re running Ubuntu 16.04 VPS on Godaddy, Do not upgrade your system with apt-get upgrade or you’ll waste hours to restore your server.