Authentication servers are usually down because Mojang may be performing updates or Mojang’s services may be entirely down.
Check Service Status
Run the check below to test whether Mojang’s services are reachable from your network. This can help determine if the issue is on Mojang’s end or yours.
To check Mojang’s official status, you can visit Mojang’s Account on X .
If the authentication servers are not down, but you are experiencing this issue with your server, please open a Support Ticket ↗ so that we can look into it.
If only one person cannot connect, the issue is most likely on their end.