I'm running into an issue where players logging in will get an error saying that authentication servers are down. It's been happening for the past couple days, and I can manually ping authserver.mojang.com, so clearly not? As a test, I had my server continually ping google.com. When a player tries to join, the ping test hangs. It seems like the server is being disconnected from the internet entirely. I'm not sure if this is a Spigot issue or something else.