@MojangSupport Any problems with the authentication servers? I'm getting "Authentication servers are down. Please try again later, sorry!" on a privately hosted server.
2
Replying to @davidcarlton
Everything is up and running according to help.mojang.com/. It's most likely related to the server itself. ^PS

Dec 1, 2017 · 6:17 AM UTC

1
Replying to @MojangSupport
Thanks. What’s the hostname / port that your auth server is on? It would help troubleshooting my end if I could run traceroute.