Hello and happy holidays! I've been trying to log into my minecraft server for a few days but I'm still receiving "authentication servers are down" error. I updated the server to 1.15.1 and since then, I haven't been able to log in. I'm not sure if this is related, but I tried to log into my husband's game via lan and wasn't able to do that either–same with him on my computer. I followed the steps online and searched on other databases to find an answer but none of the steps worked so far. Any help is greatly appreciated! 

Rebooted the server

Rebooted the computer with the game

Rebooted modem and router

Logged in/out of the minecraft launcher

Turned off the firewall on my computer with the game.

Server error message: "com.mojang.authlib.GameProfile@7f012e07 [id=null>, name=Katd0m, properties={}, legacy=false] (my external ip) lost connection: Authentication servers are down. Please try again later, sorry!"